NASA’s Cassini probe will soon plunge into Saturn, ending its 13-year mission to the ringed planet and triggering a wave of grief among scientists, engineers, and an adoring public.
The prize for a Google-sponsored competition to send spacecraft to the lunar surface will now go unclaimed.
The government shutdown shows just how much budget fights in Washington could derail Elon Musk’s rocket ambitions.
How NASA scales down to a skeleton crew when Congress misses a big budget deadline
Two astronauts will carry out the original lessons Christa McAuliffe had planned for her time in orbit in 1986.
An interim director is steering the ship, but the delay between administrations is unprecedented.
NASA is hopeful SpaceX and Boeing will soon free the country from dependency on Russia, but delays abound.
In China, a Cold War-era strategy to ward off foreign enemies has made for some dangerous modern-day conditions.
The origins of fast radio bursts have intrigued scientists for years—and now they've almost pinned one down.
Astronomers have found no evidence of radio signals coming from the interstellar asteroid known as ‘Oumuamua.
A few days after a secretive launch, rumors are circulating that the mysterious payload has failed.
Elon Musk plans to launch the Falcon Heavy later this month—but first, the rocket has to survive a big test.
New data suggest a very natural explanation for what’s happening around the “most mysterious star in the universe.”
The bigger the black hole, the faster their host galaxies get “quenched,” according to new research.
The arctic freeze over the United States this week is producing the kind of frigid temperatures typical for the red planet.
China is proving to be a formidable participant in the hunt for elusive, invisible particles in the universe.
The company's record-breaking 2017 and what it means for the science and business of rocketry
What it's like to live and work in a tiny NASA simulation for 45 days straight
NASA has approved funding for a mission to Titan, one of the best candidates for life in the solar system.
The mysterious space object 'Oumuamua may harbor ice under a crust hardened by cosmic radiation.
“Burping in microgravity is probably not something you want to do a lot of.”