An astronaut from India is set to launch to the International Space Station on the Ax-4 mission on June 11, marking a first for the nation.
The COSMOS scientific collaboration has released the largest map of the Universe ever created. It contains almost 800,000 galaxies, some from the Universe's earliest times. The map challenges some of our ideas about the early universe.
Getting to Mars takes a really long time, about 9 months using today's rocket technology. This is because regular rocket engines burn fuel and oxygen together (like a car engine), but they're not very efficient. The fundamental problem is that spacecraft must carry both fuel and oxidiser since there's no air in space to support combustion. This creates a vicious circle: the more fuel you carry to go faster, the heavier your spacecraft becomes, requiring even more fuel to accelerate that extra weight. To go faster, you'd need massive amounts of fuel, making the rockets incredibly expensive and heavy. Current chemical propulsion systems are just about at their theoretical limits, with little room for improvement in efficiency.
Asteroid 2024 YR4, once the highest impact risk ever recorded, now poses no threat to Earth but has a slightly increased chance of striking the moon in 2032.
The four astronauts of Axiom Mission 4 pose together amid a dry dress rehearsal of launch day activities. Left to right: Mission Specialist Tibor Kapu, Pilot Shubhanshu Shukla, Commander Peggy Whitson, Mission Specialists Sławosz Uznański-Wiśniewski. Image: SpaceX
Update June 9, 7 p.m. EDT: Added comments from SpaceX on the readiness of the Falcon 9 rocket and the latest launch weather outlook
Mizar, a star in the Big Dipper's handle, has a tiny companion. This star, Alcor, was known to the ancients. The pair was popularly known as the "Horse and Rider."
Bungie's next game is a return to the Marathon universe, but it's not what fans of the series were expecting. Here's everything we know so far.
SpaceX launched 26 Starlink satellites to orbit from California on Sunday (June 8), on the 70th mission of 2025 for the company's Falcon 9 rocket.
In this series we are exploring NASA's top five challenges as detailed in its Civil Space Shortfall Ranking, which is basically NASA's Christmas wish list. These are the technologies that NASA believes we need to develop if we want to go to space…and stay there.
A new batch of 15 Giant Radio Galaxies, the largest of which is 12.4 light-years wide, could help reveal how black holes and galactic mergers help the universe's largest single objects grow so large.
NASA's 2001 Mars Odyssey orbiter captures one of the Red Planet's biggest volcanoes peeking over clouds at dawn.
In May 2025, President Donald Trump announced a plan to build a missile defense system, called the Golden Dome. How exactly does it work?
Unfortunately, any work you do in the universe will have to be done the old-fashioned way.
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ESA project astronaut Sławosz Uznański-Wiśniewski is heading to the International Space Station on his first mission as part of Axiom Mission 4 (Ax-4). He is the second ESA project astronaut from a new generation of Europeans to fly on a commercial human spaceflight mission with Axiom Space.
SpaceX will launch four astronauts to the ISS on the private Ax-4 mission Wednesday morning (June 11), and you can watch the action live.
"I don't think it is an overstatement to say that morale among U.S.-based scientists is at an all-time low."
In this series we are exploring NASA's top five challenges as detailed in its Civil Space Shortfall Ranking, which is basically NASA's Christmas wish list. These are the technologies that NASA believes we need to develop if we want to go to space…and stay there.
In this series we're exploring NASA's top five challenges as detailed in its Civil Space Shortfall Ranking, which is basically NASA's Christmas wish list. These are the technologies that NASA believes we need to develop if we want to go to space…and stay there.
Preparations for the arrival of a visiting crew, the continued study of how humans adapt to microgravity and more highlight the sixth week of Expedition 73 on the International Space Station.
Antares is a red supergiant star located 400 light-years from Earth.
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