As the government investigates an unauthorized satellite launch, amateur trackers are watching the skies for clues.
The billionaire’s Twitter tirade was so ill-informed it led to a subtweet from his former head of communications.
Astronomers have found tantalizing new evidence that strengthens the case for a ninth planet beyond Neptune—but some still doubt its existence.
“I also know that we human beings are contributing to it in a major way,” Jim Bridenstine said, taking an unusual stance for his administration.
... beginning with a tiny chopper that is set to land on Mars in 2021.
Scientists used archival data to search for signs of an ocean beneath Europa, a moon of Jupiter.
The space agency hasn't funded the search for extraterrestrial intelligence for 25 years. Could that soon change?
How scientists and engineers handle a spacecraft’s months-long journey to Mars
Why more than 1 million people put their names on a mission to our nearest star
Astronomers have detected luminous clusters of galaxies much earlier in the universe’s history than expected.
Nearly 15 months after President Trump was sworn in, the space agency has a permanent administrator.
An unusual discovery in the 1990s paved the way for space telescopes to spot thousands of exoplanets.
Proof that Jupiter’s moon Io does lava better than Earth
The mystery behind the solar system’s most famous storm
Astronomers have detected evidence of a handful of the likely thousands of light-gobbling objects in the middle of the galaxy.
An employee said he saw “blood drips on the floor and stairs” at the company’s offices in Northern California after a shooting.
“Have you ever seen Gravity?”
The James Webb will launch in 2020 instead of next year—and it will probably need more money from Congress to do it.
Considering SpaceX accidentally blew up one of Mark Zuckerberg’s projects, this is a little awkward.
Nearly every science agency stands to get more money under a spending bill that avoids proposed cuts from the White House.
Photos of the long, painstaking construction process of the $8 billion James Webb Space Telescope, set to launch in early 2019.