Happy 25th anniversary, Chandra! NASA celebrates with 25 breathtaking images from flagship X-ray observatory
NASA celebrates 25 years of the Chandra X-ray observatory | Space Quiz! What part of a coronal mass ejection interacts with Earth's magnetosphere to create auroras in the sky? | 'Pushing the limits' Astronaut Andre Douglas exclusive
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Chandra launched in 1999 -- the same year Space.com started -- aboard Space Shuttle Columbia. From its egg-shaped orbit high above Earth's atmosphere that takes it over one-third of the way to the moon, the observatory has led to many discoveries by recording x-ray emissions beamed from long-dead stars, supermassive black holes and clusters of galaxies.
Artemis 2 is making progress towards its lunar liftoff, but a newly named backup astronaut notes there is "always something new" to learn in developmental missions.
Heightened solar activity has prompted the National Oceanic and Atmospheric Administration (NOAA) Space Weather Prediction Center to issue a geomagnetic storm watch for July 24.
After helping billions of people plan their trips around the world, Tripadvisor is ready to do the same for those looking to travel beyond the planet. "Destination Space," presented with the American Institute of Aeronautics and Astronautics (AIAA), is a new subsection of Tripadvisor that is focused on space tourism and exploration.
For decades, astronomers have searched without much joy for signs of "missing link" black holes, aka black holes with masses between those of "stellar-mass black holes" and "supermassive black holes." The former have been seen scattered across the universe and the latter are cosmic titans that dominate the hearts of galaxies - but when it comes to intermediate-mass black holes, scientists have seen evidence of only about ten.
Satellites in SpaceX's Starlink megaconstellation made nearly 50,000 collision-avoidance maneuvers in the last six months, about double the number made in the previous half-year. Although experts praise Elon Musk's space compay for its commitment to transparency, they warn about the implications of the soaring orbital traffic.
(NASA/JPL–Caltech/University of Western Ontario/Stony Brook University/Tim Pyle)
The James Webb Space Telescope (JWST) has discovered stormy weather in the sky of two brown dwarfs in the most detailed weather report yet from such "failed stars."
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