The spaceship is out of fuel and in sleep mode. It may not wake up.
A swift kick is all it took to get Hubble working again.
NASA's Chandra X-Ray Observatory is suffering from the same hardware failure that took Hubble out last weekend.
The nearly 30-year-old telescope is rapidly nearing its end of life.
An observatory in New Mexico was mysteriously closed this month while the FBI investigated and now we know why. No, it wasn't aliens.
Staff have been evacuated and the FBI has sent agents and a Blackhawk helicopter to the site, without telling anyone what's going on.
NASA's recently launched TESS satellite gave its cameras a test run by pointing them at a nearby comet.
So you've decided to look for Saturn. What scope should you buy?
This is the third major delay announcement in less than a year.
Spotting space rocks before they squash humanity like a bug.
The ELT will be the largest optical/near-infrared telescope in the world, with a primary mirror stretching 39 meters.
How we learn so much from seeing so little.
The James Webb Space Telescope hits another snag.
A little bit of luck, a little bit of galaxy-level refraction, and there you go.
Hello DARKNESS, my new friend.