Daily links: Movies, Mars, and ancient nematodes

Steel Rain movie

Steel Rain

A large underground lake of liquid water is discovered on Mars.

Two Russian nematodes are brought back to life after being frozen for nearly 42,000 years, making them the oldest living animals currently on earth.

European astronomers track a star travelling through the gravitational field of Sagittarius A*, the supermassive black hole at the center of the Milky Way galaxy, and it exhibits gravitational redshift, confirming Einstein’s predictions.

Massive, brutal vivisection of Star Wars: The Last Jedi, via a series of YouTube videos deconstructing the film’s appalling writing. It’s a dirty job, but someone has to do it. The franchise will never recover from this.

Review of the South Korean spy thriller Steel Rain. I watched this on a flight from Seoul to New York. It’s good.

David Goldman challenges American complacency about China’s rise.

Russia liquidates more than 84% of its US Treasury holdings in the two months through May 31, leaving experts puzzled.

The actual size of the universe

It is not small:

Observations from the Sloan Digital Sky Survey and the Planck satellite are where we get the best data. They tell us that if the Universe does curve back in on itself and close, the part we can see is so indistinguishable from “uncurved” that it must be at least 250 times the radius of the observable part.

This means the unobservable Universe, assuming there’s no topological weirdness, must be at least 23 trillion light years in diameter, and contain a volume of space that’s over 15 million times as large as the volume we can observe. If we’re willing to speculate, however, we can argue quite compellingly that the unobservable Universe should be significantly even bigger than that.