Betelgeuse is usually one of the brightest stars in the sky, but last year something strange happened to it: The star was much less bright than it used to be.
Hubble has captured another beautiful image of a distant galaxy. This time, it's the woolly galaxy NGC 2775, which is located 67 million light-years away.
It's hard to lose track of something 2.5 million times brighter than the sun. But one such massive star in the Kinman Dwarf galaxy seems to have disappeared.
The European Space Agency has shared a video fly-over of one of Mars' most famous landmarks, the enormous and icy Korolev Crater, based on Mars Express data.
NASA's planet-hunting satellite Transiting Exoplanet Survey Satellite has discovered more about one of the most extreme planets ever detected, KELT-9 b.
Jupiter may be famous for its Great Red Spot, but now the eye has been joined by a new surface feature called Clyde's Spot, discovered by an amateur astronomer.
It might be a long weekend in the U.S., but on Mars, the Curiosity rover doesn't get holidays off. It's performing software updates and gathering geology data.
A new image from the Hubble Space Telescope released today shows the beautiful galaxy NGC 7513, a galaxy that is moving away from us at a tremendous speed.
NASA wants to send a mission to Venus to investigate how Earth and Venus, which started off very similar, evolved over time to be so very different today.
SpaceX will attempt to launch its 10th batch of Starlink satellites into orbit this weekend, after having to previously postpone the launch several times.
Our part of the solar system has a spectacular new visitor, comet NEOWISE, which is visible even with the naked eye as it speeds away from the sun toward Earth.
Scientists from Harvard University have found a method to determine whether Planet Nine, a theorized body in our solar system, could be a miniature black hole,
After having to scrub its planned Starlink launch on Saturday, SpaceX has also been forced to scrap the launch of a South Koren military satellite this week.
The Solar Orbiter spacecraft has taken the closest-ever images of the sun, showing new features called campfires which appear to be miniature solar flares.
NASA and SpaceX's Crew Dragon mission has an end date, when astronauts Bob Behnken and Doug Hurley will return to Earth from the International Space Station.
The United Arab Emirates is set to make history this week by becoming the first Arab nation to launch a spacecraft into orbit around Mars with its Hope mission.
An instrument has spotted unexpected gases in the Martian atmosphere, which could help explain a mystery regarding the presence of methane on the planet.
NASA's Juno spacecraft has imaged Ganymede, Jupiter's largest moon, and captured images showing how its unusual magnetic field affects ice at its poles.
After years of preparations, NASA is launching another robotic explorer to investigate our neighbor Mars on July 30. Here's how to watch the launch live online.
New Zealand private launch company Rocket Lab announced it has discovered the cause of a failed launch last month, and will resume launches within August.
NASA and SpaceX plan to go ahead with return mission for Crew Dragon capsule, but a hurricane off the Florida coast could necessitate a delay to the mission.
If you want to check in on NASA's Perseverance rover, a webpage has real-time information on the location of the spacecraft which you can use to follow along.
NASA astronauts Behnken and Hurley are on their way home from the International Space Station as part of the crewed test flight of the SpaceX Crew Dragon.
SpaceX's Crew Dragon capsule has splashed down safely off the Florida coast, completing the first crewed test flight and returning NASA astronauts to Earth.