NASA's Mars Perseverance launch, set for Thursday, July 30, will send a new rover to the Red Planet to search for ancient habitable environments and microbial life.
Here are all the major milestones of the Mars 2020 mission to the Red Planet, from launch to landing.
London's Natural History Museum is sending a piece of a Martian meteorite back to the Red Planet with the Perseverance rover.
An observatory affiliated with NASA's quest to identify potentially dangerous asteroids spotted something equally speedy but not quite as natural: a spacecraft bound for Mars.
The brightest comet to appear in Northern Hemisphere skies in nearly a quarter of a century will soon be ending its run as a naked-eye object.
The comet NEOWISE is visible in the dawn sky right now, but photographers are facing a new challenge when they try to capture it: the SpaceX fleet of Starlink satellites.
The U.S. government says Russia tested an anti-satellite space weapon July 15. Russia says it was an inspector satellite. Nothing was destroyed.
Telescopes all over the world watched a bright flash light up space around a distant, supermassive black hole. And then, within hours, it was gone.
The Tianwen-1 mission launched atop a Long March 5 rocket from Wenchang Satellite Launch Center early this morning (July 23), kicking off a seven-month cruise to Mars.
A shower of meteors that slammed into the moon (and Earth) had a collective mass estimated to be as much as 60 times that of the asteroid that blasted Earth at the end of the Cretaceous period.
Scientists unveiled the largest 3D map of the universe ever, showing its expansion rate over 11 billion years.
The United Arab Emirates' probe Hope is on its way to Mars, marking the first planetary science mission led by an Arab country. Here's why.
Comet NEOWISE has returned to the skies and is delighting skywatchers. So what makes this comet so special?
Astronomers are buzzing about Comet NEOWISE, which observers under clear, dark skies in the Northern Hemisphere can currently see with the naked eye.
New research re-examining old data showed that 28 objects previously described as distant galaxies or dim black holes are in fact bright, shrouded supermassive black holes.
One of the most important controversies in physics remains unresolved after a major new study. But at least we have a new precise number for the universe's age.
It took just one round of photographs from a new solar science spacecraft for scientists to learn something new about the sun.