28 March 2017

Why I might (finally?) be switching to Opera

This is my first tech-related post. I work in software development and do web development on the side. I'm always on the lookout for new software, plugins, and services that will make my life easier and less complicated.

Most people install a browser once (or just use the default browser) and don't think about it much after that. As a software tester and web developer, I work with four or five browsers on a daily basis, so I'm constantly noticing the differences between them and seeing what I like and what I don't.

When Google Chrome came out in 2008, I was all-in from the first time I used it. At the time, it was revolutionary: It completely changed the look and feel of the web browser, and best of all, it was blazingly fast. The fact that most browsers now have all of those features shows just how needed they were. Over the years since, Chrome has had its ups and downs, but only one other browser has ever really tempted me to switch for good: Opera.

But with its own ups and downs over the years, I've gone back and forth between loving Opera and wondering why it still existed.

Opera was a different beast


Before version 12 (released in 2012—coincidence?), Opera really set itself apart. While all the other browsers were playing catch-up by cloning Chrome's UI—moving their tab-strips above the address bar, turning the address bar into an omnibar, allowing you to pull tabs off into their own window, hiding the File menu, etc.—Opera went a step further and added some really cool features.

On the UI side of things, Opera had all the same things as Chrome and the rest of the pack, but it also let you fully customize things, putting the tab-strip on either side or even on the bottom of the window, letting you hide the address bar, and even letting you tile, cascade, and stack tabs on top of each other as separate windows within the Opera window—almost like its own little desktop. (Since window-snapping wasn't yet easily accessible in Windows, the tab-as-window management was really pretty cool, and really helpful.)

Opera stood out in other areas, too. It had a built-in mail and chat client, a built-in notes client, a turbo mode for slow connections, and even (unique among well-known browsers) a built-in torrent client. It also had pages and pages of cool setting for nerds like me to sift through and customize to our hearts' content. And for a number of years, Opera was consistently the most standards-compliant and one of the very fastest browsers out there. I loved Opera.

Just another Chrome clone


Then came Opera 13, which they named Opera 15 to avoid the bad luck connotations (there was already an Android-only mobile version named Opera 14, so they couldn't call it that either). In my opinion, the 13 would have been surprisingly appropriate. The Opera people switched to the same layout engine that Chrome used, and as they did, they took out virtually every feature that distinguished it from Chrome. Tabstrip customization? Gone. Windowed tabs within the browser window? Gone. Torrent client? Email client? Other cool stuff? All gone. They also got rid of the ability to synchronize settings between devices, and even did away with bookmarks! And with all of that, the slight advantages in standards-compliance were the only noticeable difference between Opera and Chrome—except of course for the features that Chrome had that Opera didn't. Before the release of Opera 13—err, 15—I had been just about ready to switch for good. I liked it so much, I actually reverted the update and kept using version 12 for a while as my primary browser, but with new vulnerabilities exposed all the time, I knew that couldn't last long. With Opera now just another clone of Chrome, I started to wonder why it even still existed. I finally gave up and turned my back on Opera for good... (Well, for a few years, anyway.)

For the next few years, Chrome was king for me. Since I use all of Google's services, the tight integration was just what I wanted. As an occasional Chromebook user, I used Chrome's apps and extensions extensively—especially Chrome's panel feature, which created little (ironically) chrome-less floating windows that could be docked to the bottom or side of the screen. I used the built-in “OK Google” voice queries and the custom search engines and the Chrome notification center and the app launcher and the fully-offline-capable apps and games and everything else. But the more features Chrome packed in, the slower it started to get. Pretty soon, I started noticing the slow-down; I started noticing that Chrome was using more than half of my memory; and I started noticing the battery-drain issues that went along with it.

I wasn't the only one who noticed. To fix the problems, the Chrome people started hacking out features that not many people were using. The Chrome notification center? Gone. Chrome app launcher? Gone. Chrome panels? Gone. And last year Google announced that Chrome apps are on their way out, too, with new apps already no longer available for anyone except Chromebook users and all app capabilities being phased out by early 2018.

Another chance for Opera


Meanwhile, Opera's people have been trying out a few new things. For years, Opera Turbo has bypassed slow web connections by running webpages through Opera's own servers and compressing them there. Since they had already figured out how to run all your web traffic through their own servers, Opera took the next logical step and recently added a free, full, unlimited VPN to the Opera browser, right at a time when many are becoming increasingly nervous about their online privacy.

Ever since Opera switched to being a Chrome-clone, Chrome extensions have technically worked in Opera, although the way to actually get them working was very hackish and inconsistent. But in the newest versions of Opera, many Chrome extensions work great right out of the box—there's even an extension that lets you install them straight from the Chrome web store. They've also reintroduced bookmarks and settings synchronization back into the mix, along with adding a built-in news aggregator, ad-blocker, and battery saver—all things I use anyway.

On top of all that, Opera feels snappy. It's really fast and still completely standards-compliant, all with an interface that's fresh, clean, and minimalistic. And while they've tried to keep to the essential with the main version of the browser, the Opera team has been trying out even more new things elsewhere, like their new browser, Neon, which packs in a few of the old features people have been missing (like splitting a single browser window between two tabs) along with some new ones that are pretty slick.

When all is said and done, I still don't know if I'm ready to fully ditch Chrome for Opera, but I'm getting really close. I'm using both right now, but I am mostly using Chrome as a handy shortcut to the Chrome apps that I still use, which won't even be available soon. And once they're gone from Chrome, there's a good chance that I will be, too.

21 March 2017

Solar System Top Tens

I'm always trying to find new ways to wrap my head around everything that's out there in our solar system. We've got planets, dwarf planets, asteroids, moons, and a whole bunch of other things. It's enough that it can be hard to keep track of everything that's out there, and it can be even harder to become familiar with individual objects. This post is a list of top tens in the solar system. Most of these top tens deal with size—the ten biggest things orbiting the sun, the ten biggest dwarf planets, asteroids, etc. I made these lists for myself, so that I could get to know our solar system a bit better. Hopefully it will be interesting to someone else, too.

#1 Top ten biggest things around the sun

The sun is by far the largest object in the solar system (except for that one time when a comet's halo actually grew bigger than the sun for few days back in 2007). It's about ten times bigger than Jupiter (the biggest planet) and over 100 times bigger than the Earth. For the sake of this post, I'm going to be talking about everything except the sun.

Rank Name Diameter? Size vs. Earth
1 Jupiter 139,822 11x Earth
2 Saturn 120,536 9.5x Earth
3 Uranus 51,118 4x Earth
4 Neptune 49,528 3.9x Earth
5 Earth 12,742 1x Earth
6 Venus 12,104 95% Earth
7 Mars 6,792 53% Earth
8 Ganymede 5,268 41% Earth
9 Titan 5,152 40% Earth
10 Mercury 4,879 38% Earth

The four confirmed giant planets (Jupiter, saturn, Uranus, and Neptune) are just that—giant. It turns out Earth is actually a good size to compare to, since it falls right in the middle of the list. Earth is a mid-sized planet, but still the biggest of the non-giants. Apart from the planets, you may have noticed a few less-familiar names in the list. Ganymede and Titan are both moons (of Jupiter and Saturn, respectively), but even though they are “just” moons, they are both bigger than the planet Mercury. The next runner up for the top ten list is actually another one of Jupiter's moons, Callisto, which is basically the same size as Mercury—literally 99% Mercury's size. If we don't include moons in our list, then Mercury comes in at number eight and Pluto and Eris are the ninth and tenth objects, at 19% and 18% the size of Earth. With moons included, Pluto and Eris rank as numbers sixteen and seventeen.

If Planet Nine exists, it probably fits in somewhere between Earth and the ice giants Uranus and Neptune, at around two to four times the size of Earth.

#2 Top ten moons

As we've already seen, some of the solar system's moons are actually pretty big. Many pictures of the solar system include Earth's moon and no others, even though it's only the fifth largest moon in the solar system. Two moons (Ganymede and Titan) are both bigger than the planet Mercury, and a total of seven moons (Ganymede, Titan, Callisto, Io, “Luna”, Europa, and Triton) are all bigger than the dwarf planet Pluto. There are a total of eighteen moons in our solar system that are large enough to be round. Here are the top ten moons in the solar system:

Rank Name Diameter? Size
vs.
Luna
Size
vs.
Mercury
Size
vs.
Pluto
1 Ganymede¹ 5,268 1.5x Luna 8% > Mercury 2.2x Pluto
2 Titan² 5,152 1.5x Luna 6% > Mercury 2.2x Pluto
3 Callisto¹ 4,821 1.4x Luna 99% Mercury 2.0x Pluto
4 Io¹ 3,630 1.1x Luna 74% Mercury 1.5x Pluto
5 “Luna”³ 3,474 1x Luna 71% Mercury 1.5x Pluto
6 Europa¹ 3,138 90% Luna 64% Mercury 1.3x Pluto
7 Triton⁴ 2,707 78% Luna 56% Mercury 1.1x Pluto
8 Titania⁵ 1,578 45% Luna 32% Mercury 67% Pluto
9 Rhea² 1,529 44% Luna 31% Mercury 64% Pluto
10 Oberon⁵ 1,523 44% Luna 31% Mercury 64% Pluto

Runners up are Saturn's moon Iapetus, at 62% the size of Pluto, and Pluto's own orbital companion Charon, at 51% the size of Pluto. (In fact, Charon is so big compared to Pluto that the two objects actually orbit each other, and are considered by some to be a double planet.) We often learn about the major planets and completely ignore their moons, but the reality is that the moons are much more like planets than many people think. Apart from many of the moons listed being large enough that they could have been planets, Titan has a full atmosphere with clouds, rain, rivers and seas, Europa and Enceladus both have subsurface oceans that are currently the most likely places we know of to look for life, and a number of the moons are also good candidates for human colonization.

#3 Top ten asteroids

When the first asteroids were discovered in the early 1800s, they were considered planets for around half a century and even given their own planetary symbols before being reclassified as asteroids. Although they're no longer considered planets, they're still interesting places to study and explore. Ceres, the largest asteroid, is the only round asteroid, and is currently classified as a dwarf planet. It was visited by the Dawn spacecraft in 2015.

Rank Name Diameter? Size comparison
1 Ceres¹ 946 1.3% Luna; 7.2% Pluto
2 Vesta 525 56% Ceres
3 Pallas 514 54% Ceres
4 Hygiea 435 46% Ceres
5 Interamnia 324 34% Ceres
6 Europa 313 33% Ceres
7 Davida 293 31% Ceres
8 Sylvia 292 31% Ceres
9 Cybele 267 28% Ceres
10 Eunomia 266 28% Ceres

The asteroids in this list are quite large, compared to the hundreds of thousands of other asteroids out there. Even so, there are a number of other larger objects—trojans, centaurs, and trans-Neptunian objects—that are sometimes considered asteroids. I've only included main-belt asteroid in this list, but I've separated the other large non-planets out into their own lists below.

#4 Top ten TNOs

TNOs (trans-Neptunian objects) are icy objects that orbit out beyond Neptune. Because ice isn't as hard as rock, many TNOs have been pulled into a round shape by their own gravity, making them dwarf planets. (Not all TNOs are dwarf planets, but the biggest ones—the ones in this list—are, although only five have officially been classified as such.) The most famous TNO is beloved old Pluto, but there are other worlds out there that are just as interesting. Because most of the TNOs we know about have been discovered during this century (i.e., after the year 2000), there is still a lot that we don't yet know about them. As such, there's a good chance this top ten list won't look the same even a few years from now.

Rank Name Diameter? Size vs. Pluto Size vs. Ceres
1 Pluto* 2,374 1x Pluto¹ 2.5x Ceres
2 Eris* 2,328 98% Pluto² 2.5x Ceres
3 OR₁₀ 1,535 65% Pluto 1.6x Ceres
4 Makemake* 1,447 61% Pluto 1.5x Ceres
5 Haumea* 1,403 59% Pluto 1.5x Ceres
6 Charon 1,212 51% Pluto 1.3x Ceres
7 Quaoar 1,046 44% Pluto 1.1x Ceres
8 Sedna 1,032 44% Pluto 1.1x Ceres
9 Salacia 883 37% Pluto 93% Ceres
10 MS₄ 865 36% Pluto 91% Ceres

As I mentioned before, Pluto's orbital companion Charon is large enough to be a dwarf planet in its own right; some preliminary versions of the definition of “dwarf planet” actually included it as one. Runners up for the top ten are Orcus (35% the size of Pluto—88% Ceres') and 2013 FY_2_7 (34% Pluto's size—85% Ceres'). It's worth noting that of the top ten TNOs, all but Pluto and Charon were discovered after the year 2000, cementing the fact that this is a new era of solar system discovery, with plenty of new objects yet to be found.

Other things in the solar system

Most people know about planets, moons, and asteroids, and even people who don't know what TNOs are have at least heard about dwarf planets. But there are a number of other types of objects out there in the solar system that we hear less about. These include trojans—small bodies that share a major planet's orbit, centaurs—small bodies that orbit between the orbits of the outer planets, and near-Earth objects—small bodies that orbit (partially or completely) within the orbit of Mars.

#5 Top ten trojans

Rank Name Diameter? Size comparison
1 Hektor¹ 242 26% Ceres' size
2 2010 EN65 ² 200 82.5% Hektor's size
3 Agamemnon¹ 166 69% Hektor
4 Diomedes¹ 164 68% Hektor
5 Äneas¹ 143 59% Hektor
6 Patroclus¹ 142 59% Hektor
7 2006 RJ103 ² 138 58% Hektor
8 Achilles¹ 136 56% Hektor
9 2011 HM102 ² 135 56% Hektor
10 2014 QO441 ² 130 54% Hektor

Although there are thousands of other trojans—some of which orbit Earth, Mars, and Uranus—there are only eighteen others known that have diameters of 100 or larger.

#6 Top ten centaurs

Orbiting out between the giant planets, centaurs display some properties of regular asteroids and some properties of comets, with a few centaurs officially classified as both. On top of that, two of the largest centaurs, Chariklo and Chiron, both have rings, making them the only known objects other than the giant planets to have them. They are called centaurs due to their hybrid nature, after the half-man-half-horse creatures of Greek mythology.

Rank Name Diameter? Size comparison
1 Chariklo 259 27% Ceres' size
2 Bienor 204 79% Chariklo's size
3 Chiron 188 73% Chariklo
4 Pholus 157 61% Chariklo
5 Amycus 90 35% Chariklo
6 Asbolus 75 29% Chariklo
7 Hylonome 70 27% Chariklo
8 Cyllarus 65 25% Chariklo
9 Crantor 60 23% Chariklo
10 Nessus 60 23% Chariklo

The three largest centaurs—Chariklo, Bienor, and Chiron—are listed as probable dwarf planets by Mike Brown. He also lists Pholus and Amycus as possible dwarf planets.

#7 Top ten NEOs

NEOs (near-Earth objects) are mostly very small objcts that orbit at least partially within the orbit of Mars. These are of particular interest to astronomers, both because they are close enough that we have plenty of opportunities to study them and because we want to make sure none of them are going to hit us any time soon. While NEOs may be small compared to other things out in space, some of those listed here are still much bigger than even the biggest mountains on Earth. I've included Mount Everest for size comparison, which is 8.848 high at its highest point.

Rank Name Diameter? Size comparison
1 Ganymed 33 3.7x Mount Everest
2 Eros 18.4 2.1x Everest
3 Don Quixote 18.4 2.1x Everest
4 Eric 10.8 1.2x Everest
5 1998 QE2 10 1.1x Everest
6 Sisyphus 8.5 96% Everest
7 1990 TR 4.3 49% Everest
8 Geographos 3.5 39% Everest
9 Toutatis 3 34% Everest
10 1993 UC 2.7 31% Everest

#8 Top ten (or fourteen) SSOs with the most (known) moons

Earth has one moon, Venus and Mercury don't have any, Pluto has five (depending on how you count), and the giant planets each form their own little solar systems with dozens of moons each and probably more we haven't even discovered yet. It might surprise some people to learn that even a few otherwise-unremarkable asteroids have more than one moon.

Rank Name Moons
1 Jupiter 67
2 Saturn 62
3 Uranus 27
4 Neptune 14
5 Pluto¹ 5
6 Mars 2
7 Haumea 2
8 Sylvia 2
9 Eugenia 2
10 Elektra 2
11 Minerva 2
12 Kleopatra 2
13 Balam 2
14 Litva 2

With nine solar-system objects that each have two moons, I can't include some in the list and not others, so this list ends up being a Top-14 list. For comparison, there are around 45 known objects in the solar system with a single moon and a few more that are harder to categorize (like two same-sized object that orbit each other and have an additional object orbiting both of them). The two-mooned objects in this list are listed from largest to smallest.

#9 Top ten furthest known objects

The question of which solar-system objects are the furthest from the sun is actually a bit complicated. Because orbits are not perfectly circular, some objects may be very distant from the sun at one time, but relatively close at another. For example, one object, 2014 FE72, goes all the way out to over 3000 AU (1 AU is the distance from the sun to the Earth), but also swings in to less than 40 AU (around the average orbit of Pluto).

Some lists of the furthest objects in the solar system use the furthest distance an object goes, even if at other times it is much closer; others look only at objects that never get closer than a certain distance; and still others look at the semi-major axis—a sort of average distance. Because there are comets that go so far out we don't actually know their farthest distance, it seems that making the list based on farthest distance isn't the way to go, since we can't actually make any definitive judgments there. The semi-major axis seems like a good compromise, but if an object comes in so close that it spends part of its orbit in the main asteroid belt, it doesn't really make sense to call it one of the farthest objects in the solar system. Because of this, I've chosen to make my list based on where objects actually are right now. This means that there are objects that may go out further, but for the moment, these are currently the farthest known objects.

Rank Name Distance
1 v774104 103
2 Eris 96.2
3 “DeeDee” 91.6
4 OR10 87.6
5 2013 FS28 86.2
6 Sedna 85.6
7 2014 FC69 84.4
8 2006 QH181 83.6
9 “Biden” 83.3
10 2013 FY27 80.2

Because these regions of the solar system are so far away, there are likely many more objects out there that we haven't even found yet—we were only able to discover objects like Sedna and Biden because they happen to be at the closest part of their orbits! As such, there's a good chance that this list will change substantially within the next few years as our ability to peer farther out into space improves.

#10 Top ten places to look for life

For many, the most important reason to keep exploring space is to find out if there's life anywhere else out there. While other stars have planets that may be similar to Earth, the best place to start looking is right here in our own cosmic backyard. And although most people probably think first of Mars when they think of looking for life in the solar system, there are actually a few other places that may have even better chances of life.

Rank Name
1 Europa
2 Titan
3 Enceladus
4 Mars
5 Venus
6 Io
7 Ceres
8 Callisto
9 Ganymede
10 Small bodies

While this is a top ten list like the rest, everything past the first four is a bit of a stretch. Europa, Titan, Enceladus, and Mars are all considered good places to look for life by a number of scientists. The subsurface oceans on Europa and Enceladus offer excellent possibilities for life, the surface oceans on Titan do as well, and Mars has always been a favorite choice due to its similarity to Earth and presence of small amounts of liquid water. The other objects listed here are sometimes listed as possible—though not probable—locations for life. And of course, while there are equations to predict the likelihood of different kinds of life in the universe, this top-ten list is clearly the least numerically-founded list I've included.

Final thoughts

As I said at the outset, I compiled these lists mostly for myself, because I wanted to get to know more than just the major planets and the official dwarf planets. By learning the names and a few properties of nearly 100 solar-system objects (10 lists × 10 objects, minus some repeats), I've expanded my understanding of what's out there, but the really interesting thing for me has been taking these lists and learning a bit more about each item individually.

With the now-tired debate about Pluto's planetary status still raging in just about every solar-system-related comment section on the internet, we sometimes lose sight of the fact that whatever they're classified as—planets, dwarf planets, asteroids, or just “small solar system bodies”—each object out there is an entire world, just waiting for us to learn more.

15 March 2017

(The object formerly known as) Snow White and the Seven Dwarfs

With 2016 over and 2017 well underway, we'll soon be coming up on the 10th anniversary of the discovery of 2007 OR10, a dwarf planet that orbits out past Pluto in the scattered disk. When OR10 was first discovered in July of '07, it was bright enough that it was clearly either fairly large (i.e., a dwarf planet) or almost completely white, so Mike Brown and his associates assumed the latter and nicknamed it “Snow White”. Later observations made it clear that it was actually quite large and quite red, so the nickname no longer made sense, and was dropped. With OR10's discovery now ten years after the fact, it's time for this distant world to join the ranks of the named dwarf planets, and time is running out for Mike Brown's team to pick a new name.

Is OR10 really a dwarf planet?


I've written before (and so has Mike Brown) about the fact that the IAU created the “dwarf planet” category, officially added a few members to the club, and then essentially closed the books on it, leaving an entire generation of children to learn that the solar system has eight real planets and exactly five official dwarf planets. The reality, of course, is that we now know about at least fifty dwarf planets, and possibly hundreds, with more being discovered all the time. There are lists out there of possible and probable dwarf planets, most of which agree on a number of objects that almost certainly are dwarf planets. One simple—and certainly the most conservative—solution to the question of what to call a dwarf planet is to say that since Ceres is officially a dwarf planet, anything larger than Ceres must also be a dwarf planet. If we use this overly conservative threshold for dwarf planets, OR10—which is 63% larger than Ceres—clearly makes the cut, along with a total of seven other dwarfs (including Ceres).

Snow White OR10 and the seven (other) dwarfs
  • Pluto–Charon
  • Eris
  • 2007 OR10
  • Makemake
  • Haumea
  • Quaoar
  • Sedna
  • Ceres

When astronomers realized that OR10 was big rather than just bright, they also realized that it is actually one of the largest objects orbiting the sun, with initial estimates putting it between Makemake and Haumea—both “official” dwarf planets—in size. More recent estimates put OR10 as possibly larger than Makemake, which would make it the third largest known dwarf planet, and place it within the top twenty largest objects in the entire solar system! (Even OR10's newly discovered moon is fairly large, beating out all but the top seven main-belt asteroids in size.)

A rose by any other name…


Despite being the third-largest known dwarf planet, 2007 OR10 conspicuously lacks a name. In fact, it's the largest unnamed object in the solar system! In the ten years since its discovery, amateur astronomers and space enthusiasts have proposed plenty of ideas—everything from Norse, British, and Aztec deities to ‘Prince’ (Get it? The artist formerly known as Prince—the object formerly known as Snow White?) to a number of variations on ‘Orten’ (Orten, 'Orton, Horton, etc.—all based of course on the temporary designation OR10). While it's true that not having a name doesn't really change anything about OR10 itself, it definitely downgrades it in the eyes of the public, resulting in many lay publications happily mentioning Quaoar, Sedna, and Orcus as possible dwarf planets but completely ignoring OR10, despite the fact that it is significantly larger than any of them. It's likely that this total silence around OR10 is at least partially due to it's lack of a name.

The clock is ticking for Mike Brown's team to choose a name for OR10; the IAU's official rule is that after ten years, anyone can submit a name for official consideration. Since OR10 was discovered in July of 2007, there are only a few months left for a name to be submitted, considered, and approved. While I'd love to submit my own ideas and possibly even be the one to name a dwarf planet, what I'd really love would be for that honor to go to the discoverers instead. Both Mike Brown and Meg Schwamb (whose research under Mike Brown actually led to OR10's discovery) have stated publicly that they now have enough information to name OR10; hopefully it won't be too long before the third largest dwarf planet finally has a name of its own.