Category Archives: Deep Space Objects

What If You Had a Black Hole in Your Pocket?

What would happen if you somehow had a coin-sized black hole to play with? (Come on, you know you’ve been wondering about this.) Well, besides the fact that you’d quickly be dead (spoiler alert) a lot of things would happen—to you, to the world around you and, depending on the kind of black hole, to the entire planet. Munich-based design studio Kurzgesagt has created a handy informational video to illustrate what you can expect should you suddenly find yourself in possession of a miniature black hole*—check it out above, and find more fun info videos by Kurzgesagt here.

Also learn more about what black holes are (and why it’s important that we study them) in this PHDComic here.

*Private ownership of black holes is not recommended and is possibly illegal.**

**If not it should be. Contact your representative.

What Can Hubble See? Find Out in This Music Video


Get into a little “Hubble trouble” with this music video by NPR’s Adam Cole, aka Skunk Bear. Produced in honor of the 25th anniversary of the space telescope’s launch aboard Discovery STS-31 on April 24, 1990, the video is a parody of Iggy Azalea’s “Trouble” and, in my opinion, surpasses it astronomically.

(See what I did there?)

Enjoy, and Happy 25th Anniversary Hubble! Also, check out a video of the STS-31 launch below:
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Cassini Spots the Sombrero Galaxy from Saturn

M104 imaged five years apart from Cassini on April 12, 2015 (left) and from the Subaru Telescope on April 12, 2015 (right). Credits: NASA/JPL/SSI/J. Major and NAOJ.

M104 imaged five years apart – from Cassini on April 12, 2015 (left) and from the Subaru Telescope on April 12, 2015 (right). Credits: NASA/JPL/SSI/J. Major and NAOJ.

We’re all used to seeing fantastic images of Saturn and its family of moons from NASA’s Cassini spacecraft, which has spent the last decade in orbit around the ringed world. But every now and then Cassini aims its cameras outwards, capturing images of the sky beyond Saturn – just like we might look up at the stars from here on Earth. And while it’s not designed to be a deep-space observatory like Hubble or Subaru (or even like a modest backyard telescope, really) Cassini can still resolve many of the same stars we can easily see in the night sky… and, on April 12, 2015, it spotted something much farther away: the Sombrero Galaxy (M104), 29 million light-years distant!

Coincidentally Cassini grabbed its image of M104 exactly five years after it was imaged with Japan’s Subaru Telescope, located atop Mauna Kea.

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What is a Neutron Star, Anyway?

Neutron stars are strange cosmic beasts. Stellar corpses that are several times the mass of our Sun but only about the width of Manhattan, they can contain a mountain’s worth of star-stuff within the space of a sugar cube, creating all sorts of weird physics that requires funny-sounding names like “quark-gluon plasma” to even try to describe what’s going on. The video above, created by Munich-based design studio Kurzgesagt (which means “in a nutshell” in German) illustrates how neutron stars form and what we think is happening on, around, and inside them.

See more In a Nutshell videos by Kurzgesagt on YouTube here, and find some interesting neutron star facts below:

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Our Five-Trillion-Mile Close Call: the Star(s) That Skimmed the Solar System

Artist's rendering of two stars that made a close pass by the Sun 70,000 years ago. (Michael Osadciw/University of Rochester)

Artist’s rendering of two stars, a red dwarf and a brown dwarf, that made a close pass by the Sun 70,000 years ago. (Michael Osadciw/University of Rochester)

It’s like something out of a Hollywood film or a science fiction novel: a dark star sneaks up on Earth from just outside the Solar System, discovered too late to do anything about it (and really, what could we do?) and plows through the cloud of comets that surrounds the Sun like a haze of icy gnats, sending them flying everywhere… including on collision courses with Earth. Mass hysteria ensues.

Except that this isn’t just a story concept – scientists think this is actually something that happened 70,000 years ago! Minus the mass hysteria, of course… our ancestors were just beginning to settle down in the fertile lands of the Middle East after wandering out of Africa and would have had no idea what was happening at the edges of the Solar System (besides maybe a bright star occasionally flaring up in the night sky.)

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Hubble’s Stunning Star-Filled View of the Andromeda Galaxy

A crop of Hubble's newest image of the Andromeda Galaxy (M31). Credit: NASA, ESA, J. Dalcanton, B.F. Williams, and L.C. Johnson (University of Washington), the PHAT team, and R. Gendler.

My god it’s full of stars! A crop of Hubble’s newest image of the Andromeda Galaxy (M31). Credit: NASA, ESA, J. Dalcanton, B.F. Williams, and L.C. Johnson (University of Washington), the PHAT team, and R. Gendler.

It’s Hubble’s 25th anniversary in space this year but it seems like we’re the ones getting all the presents! Yesterday NASA released two new high-def versions of the famous “Pillars of Creation” image, and now today there’s this: Hubble’s most detailed image ever of the Andromeda Galaxy!

Containing over 100 million stars it’s not just the best view yet of Andromeda – it’s also the most expansive image ever made with Hubble. Although the galaxy is 2.5 million light-years away it extends across an area larger than the full Moon in the sky, so to create such a detailed mosaic Hubble had to obtain 7,398 images taken over 411 individual pointings! It’s 1.5 billion pixels covering an area over 40,000 light-years across.

According to NASA, it’s “like photographing a beach and resolving individual grains of sand.” Wow!

Check out the full image below:

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