NASA scrambles after veteran Mars spacecraft mysteriously goes dark

NASA has lost contact with one of its longtime Mars workhorses after the spacecraft abruptly stopped communicating. Maven was ...
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NASA's Chandra telescope uses 'X-arithmetic' to reveal how black holes shape galaxy clusters (images)

A novel "X-arithmetic" technique reveals how black holes shape the universe's largest structures.
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NASA's TRACERS Spacecraft starts early science measurements in Earth’s polar cusp

NASA’s TRACERS mission begins early science measurements in Earth’s southern polar cusp, tracking magnetic reconnection and ...

NASA tracking plane-sized asteroid approaching earth

The 84-foot-diameter space rock—dubbed "2025 XM"—is hurtling through the solar system at a zippy 9,753 miles per hour.

NASA astronaut back on Earth after 8 months on space station

NASA astronaut Jonny Kim flew home with two Roscosmos cosmonauts from the International Space Station packed tight in their ...

NASA astronaut comes home after circling Earth 3,920 times

Kim officially became an astronaut in 2017. Expedition 72 and Expedition 73 marked Kim’s first visit to the ISS, where he ...
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NASA astrophysics director offers optimistic vision despite budget uncertainty

The head of NASA’s astrophysics division offered an upbeat assessment of upcoming missions, a stark contrast to the agency’s ...

Aliens are probably out there, NASA scientist says—but there’s a dreadful reason they never call

What if the universe is teeming with ETs, but their silence is exactly the point?