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Project Mercury: America's 1st crewed space program
By Elizabeth Howell last updated
Project Mercury was NASA's program that launched the first American astronauts into space, completing a total of six crewed spaceflights.
The fastest-moving stars in the galaxy may be piloted by intelligent aliens, new paper suggests
By Paul Sutter published
To explore the galaxy and hunt for resources, intelligent aliens might need to turn their home stars into natural spaceships, a new paper suggests. A few known star systems might fit the bill.
2 space telescope designs will battle it out to become NASA's next cosmic imager
By Keith Cooper published
Whichever mission NASA selects to image the cosmos next should launch by 2032. Here are the two contenders.
On this day in space! Nov. 28, 1967: Jocelyn Bell Burnell discovers the first pulsars
By Hanneke Weitering last updated
On Nov. 28, 1967, British astrophysicist Jocelyn Bell Burnell discovered the first pulsars.
Starlink satellites: Facts, tracking and impact on astronomy
By Tereza Pultarova, Elizabeth Howell last updated
Reference Starlink satellites have been developed by SpaceX to provide internet to remote locations. Here we explore the controversial megaconstellation in more detail.
Happy Thanksgiving from space! What Turkey Day dinner looks like for NASA astronauts on ISS (video)
By Mike Wall published
The four NASA astronauts currently living on the International Space Station wished us all a happy Thanksgiving — and revealed what they'll be feasting on this Turkey Day.
NASA's Europa Clipper probe deploys 1st science instruments en route to Jupiter
By Samantha Mathewson published
NASA's Europa Clipper mission has successfully deployed its magnetometer's boom and several antennas for its radar instrument as it continues on its journey toward Jupiter's ice-covered moon.
Japan's priceless asteroid Ryugu sample got 'rapidly colonized' by Earth bacteria
By Robert Lea published
A sample of the asteroid Ryugu returned to Earth by the Hayabusa2 mission was rapidly colonized by terrestrial microorganisms, new research has revealed.
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