Comet C/2023 P1, Nishimura visible from Earth. Credit: NASA/JPL-Caltech | edited by Space.com ...

Hippopotomonstrosesquippedaliophobia is the term for being afraid of long words. It’s an obvious joke at the sufferer’s expense, though psychologists tend to use “sesquipedalophobia” instead. The word ...

NASA’s Transiting Exoplanet Survey Satellite has once again surprised astronomers by tracking interstellar comet 3I/ATLAS, a ...

During a special observation run earlier this month, NASA’s TESS space telescope recorded the interstellar comet’s subtle glow and tail, adding to archived observations that may reveal clues about ...

NASA’s TESS spacecraft captured dozens of images of interstellar comet 3I/ATLAS in. The data show the rare visitor behaves ...

Forty years after the Challenger disaster, the tragedy is remembered not only for the seven lives lost, but for the engineer ...

NASA’s TESS spacecraft tracked interstellar comet 3I/ATLAS in January, capturing data on its motion, brightness, and rotation before it left the solar system ...

During a special observation run from Jan. 15 to Jan. 22, the Transiting Exoplanet Survey Satellite ( TESS) repeatedly ...

NASA’s 1986 Challenger mission was intended to inspire students to consider a future in space. The crew’s family is ...

NASA’s Space Shuttle Challenger lifted off 40 years ago with an unusual crew. In addition to six astronauts, the mission took ...

Forty years ago today, disaster struck NASA’s human spaceflight program when the space shuttle Challenger exploded 73 seconds ...

Jan. 28, 1986, 7 spacefarers were killed when shuttle Challenger exploded midair after launching from Kennedy Space Center in ...