Every deep-space mission carries a fuel budget built for the worst case, with engineers padding it against uncertainty in ...

The private spacecraft sent to help an aging NASA telescope has begun its return to Earth after the rescue attempt failed.

NASA’s Roman Space Telescope will test powerful new technology that could make faint exoplanets far easier to image directly.

Radio telescopes are designed to listen for signals from the stars and from distant galaxies, but scientists are also pointing out that these instruments can also track objects somewhat closer to home ...

Maunakea telescopes just helped find the two most distant quasars ever seen. That's light from the universe's first 670 ...

About halfway through Sunday’s news conference, NASA Administrator Jared Isaacman received a call from President Donald Trump. Isaacman briefly left the room and returned with the president on the ...