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Hubble finds 10 times as many galaxies as previously thought. NBD.

One of the most fundamental questions in astronomy is that of just how many galaxies the universe contains. The landmark Hubble Deep Field, taken in the mid-1990s, gave the first real insight into the universe’s galaxy population. Subsequent sensitive observations such as Hubble’s Ultra Deep Field revealed a myriad of faint galaxies. This led to an estimate that the observable universe contained about 200 billion galaxies.

The new research shows that this estimate is at least 10 times too low.

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The GIF is dead. Long live the GIF.

The GIF as an art form—a short and silent loop—has never been more popular than it is right now. Yet the GIF as a filetype, the way we store the library of ones and zeros that computers translate into animation, is quietly embattled. Behind the scenes, a war to exterminate it has been raging for years, and it never really ended. All these years after Burn All GIFs Day, the GIF remains both deeply flawed and yet strangely irreplaceable. Whether this latest frenzy of GIF popularity enshrines it forever or kills it for good, you can be damn sure we’ll never see anything quite like it again.

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Greenland shark found to be at least 272 years old

A large, almost-blind shark that lives in the freezing waters of the North Atlantic and Arctic oceans is officially the world’s longest-living vertebrate, scientists say.

The Greenland shark (Somniosus microcephalus) has a lifespan of at least 272 years, and might live as long as 500 years1. That is older than the 211-year lifespan of the bowhead whale (Balaena mysticetus), the previous record-holder in the scientific literature2. It also beats the popular — but unconfirmed — tale of a famous female Koi carp called Hanako, who supposedly lived to 226 years old.