Space
Come along with us as we explore outer space, including everything from NASA to astronomy to aliens.


Here’s the thing: The risk from AI isn’t just a weird worry of Elon Musk.


The good news is you can’t afford to do the same.


How the Kepler Space Telescope discovered there are more planets than stars in the galaxy.
The moon landing was accomplished through the careful deconstruction of the Saturn V rocket and the Apollo spacecraft.

Here’s what experts in managing risks to human civilization think we should be doing instead.


Earth is currently passing through a patch of debris created in the wake of Halley’s comet tail.


Saturn’s innermost ring rains dust.


Who is Yusaku Maezawa, and why is SpaceX sending him to the moon?


Yusaku Maezawa, a Japanese billionaire, is expected to fly to the moon aboard SpaceX’s Big Falcon Rocket in 2023.


Go outside!


The Parker Solar Probe will try to solve the decades-old “coronal heating problem.”


The Parker Solar Probe will try to solve a mystery of the sun’s super-hot corona. Live-stream the launch here.


It all comes down to a defense budget fight for 2020.


Here’s one: Does Trump want a Death Star?


The Delta Aquariids meteor shower peaks on July 27 and 28. But a bright moon may get in the way.


Most of the world will get to see a total lunar eclipse today. Here’s how to watch.


How to live-stream Friday’s epic “blood moon.”

See Mars and Saturn in big, bright detail.


And while you stare, contemplate the cool new findings that the planet might have liquid water beneath its surface.


Einstein’s general theory of relativity is 100 years old. It just passed another crucial test.


Jupiter now has 79 moons, including a new weird one that may explain why there are so many.


An enormous ice cube at the South Pole is revealing mysteries about the universe.


The National Science Foundation will reveal findings in “multi-messenger astrophysics” Thursday at 11 Eastern. Stream it here.

The Perseid meteor shower, a total lunar eclipse, and Mars at opposition: the best skywatching this summer.


How to find, track, and prevent asteroids from destroying cities.


There’s a case for killing the space station. There’s no case for turning over the keys to a private company.


NASA wants to prove it can fly a helicopter on Mars. So it’s sending one in 2020.


Scientists propose a new definition of “planet” that includes Pluto — and at least 100 other objects in the solar system.


Gauss was called “the prince of mathematics.” Here’s why.

And that’s just a tiny fraction of the total number of stars in the galaxy.


Watch pieces of comet debris burn up in the night sky.


Jim Bridenstine’s confirmation has been controversial — even among Republicans.


Space agencies weren’t sure exactly when, or where, the out-of-control station would fall out of orbit.


The Chinese lost control of the Tiangong-1 space station in 2016. And it’s expected to crash April 1 or 2.


The astronaut’s DNA didn’t change in space. Here’s what might have.
Aliens often resemble life on Earth. How did we land on that concept of extraterrestrials?


Hawking radiation, explained by a physicist.


The mission will deploy an observation satellite and two microsatellites.


Ted Cruz blames the idea on “numbskulls” over at the Office of Management and Budget.


A cherry-red convertible orbited the Earth. Watch a replay here.