A European Ariane 5 rocket lifts off from the Guiana Space Center with the MEASAT 3d and GSAT 24 satellites. Credit: ESA/CNES/Arianespace/JM Guillon
Two multi-ton geostationary communications satellites for Malaysian and Indian operators took off on top of an Ariane 5 rocket Wednesday from French Guiana, leaving four Ariane 5s left to fly before retirement of the European workhorse launcher.
NASA’s Artemis 1 moon rocket on Launch Complex 39B earlier this month. Credit: NASA/Ben Smegelsky
Foregoing another countdown rehearsal, NASA plans to return the first Space Launch System rocket to its assembly hangar at the Kennedy Space Center next week for a hydrogen leak repair and continued preparations for liftoff on the Artemis 1 moon mission.
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Live coverage of the countdown and launch of an Ariane 5 rocket with the MEASAT 3d and GSAT 24 communications satellites. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.
A New Zealand resident spotted a "bizarre but very cool" blue spiral above her house following a SpaceX launch on Sunday (June 19).
The Contreras wildfire has been threatening the historic Kitt Peak National Observatory in southern Arizona.
NASA officials are pleased with Artemis 1's performance during its recent "wet dress rehearsal" but need more time to determine its readiness for launch.
The International Dark-Sky Association’s has summarized more than 300 peer-reviewed studies on the effects of artificial light at night in an effort to help dark-sky advocates.
Less than a month after "Apollo 13" opened, President Bill Clinton met with Jim Lovell to present one of the highest awards an astronaut can receive: the Congressional Space Medal of Honor.
A sunspot nearly triple the size of Earth is within firing range of our planet and may send out medium-class flares in the near future.
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The 500-Meter Aperture Spherical Telescope (FAST), (aka. Tianyan, “Eye of Heaven”), is the largest radio observatory in the world. Since the observatory became operational in January 2020, this facility has made significant contributions to radio astronomy and the Search for Extraterrestrial Intelligence (SETI). In particular, the observatory has been instrumental in detecting Fast Radio Burts (FRBs) and other cosmic phenomena that could be (but probably aren’t) possible indications of extraterrestrial communications.
A newly discovered supercluster of galaxies is so distant that astronomers say its light has been traveling for over twelve billion years to reach telescopes on Earth. But this cluster, named SPT2349 ?56 is gigantic, and so old that it is actually classified as a proto-cluster of galaxies, meaning it might be one of the earliest large clusters of galaxies in our Universe. It is also one of the most actively star-forming proto-clusters known.
It wasn't quite a five-year mission, but we've finally built the Playmobil USS Enterprise and it's everything we wanted and more.
In the decades-long search for extraterrestrial intelligence, there has never been confirmed evidence of an alien signal. There have, however, been a few tantalizing mysteries. Perhaps the greatest of these is known as the Wow Signal.
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Look up! Venus will pass the Pleiades in the predawn sky on Thursday. The encounter will be visible with a pair of binoculars.
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