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Space News from SpaceDaily.Com brings the space industry professional daily news from the frontier, with contract, bid, launch and on-orbit satellite news as it happens.
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On 31 January 1958, Explorer 1, America’s first satellite, began returning a baffling pattern from its Geiger counter: ordinary cosmic-ray counts followed by unexplained zeros. Van Allen’s team suspected the instrument was not failing but saturating under radiation too intense to register; two months later, Explorer 3’s complete recordings confirmed that the apparent silence marked a vast radiation belt surrounding Earth—the first of the belts now bearing Van Allen’s name.
8+ hour, 33+ min ago (515+ words) Explorer 1’s zero counts proved to be detector overload, and Explorer 3’s continuous record exposed the first of Earth’s Van Allen radiation belts....
On 5 September 1977 Voyager 1 left Cape Canaveral at 721.9 kg; as of 21 August 2024 it was 164.7 AU from Earth, moving about 38,027 mph relative to the Sun and still returning data
1+ day, 7+ hour ago (177+ words) Nearly five decades after launch, humanity's most distant emissary continues whispering back from the edge of the solar system, defying every expectation of how long a machine can survive in the void....
After more than 50 years, a solar telescope in New Mexico is being pulled down, after liquid mercury from the bearing that let its 250-ton optical system turn was found inside the tower. Crews found the metal on January 5.
2+ day, 14+ hour ago (575+ words) By The Daily Orbit Published September 11, 2026 · How we edit A solar telescope in New Mexico is being torn down, and the reason is a pool of liquid mercury hidden inside it. The mercury was the clever trick that made the…...
ESO’s new MOONS spectrograph on the Very Large Telescope took first light able to watch about 1,000 cosmic targets at once through roughly 1,000 fibers, built to map millions of objects over its working life
6+ day, 13+ hour ago (30+ words) For the first time, astronomers can map the cosmos in bulk, capturing the light signatures of a thousand distant objects at once to unlock the history of billions of galaxies....
Astronomers using Hubble found a new roughly 104,000-mile-wide ten-sided storm forming at Saturn’s south pole, a geometric twin to the famous hexagon that has long circled the north
6+ day, 13+ hour ago (168+ words) Saturn's symmetry breaks: a ten-sided storm now mirrors the planet's legendary hexagon, suggesting these geometric puzzles obey deeper physics we're only beginning to understand. By Deep Field · Edited by Justin Brown Published September 7, 2026 · How we edit The open questions are…...
Betelgeuse's northeast hotspot held its spot from 2015 to 2023, outliving the large convective structures current models predict
1+ week, 7+ hour ago (20+ words) The red supergiant's stubborn hotspot defies everything astronomers thought they knew about how massive stars churn their surfaces....
Ganymede may hold more liquid water than all of Earth’s oceans combined, yet this immense reservoir is buried beneath roughly 150 kilometres of ice—and scientists still do not know whether any of it has ever reached the surface.
1+ week, 22+ hour ago (1634+ words) Magnetic and auroral evidence points to a vast ocean beneath Ganymede, but surface salts do not yet prove a direct connection through its roughly 150-kilometre ice shell. By Deep Field · Edited by Lachlan Brown Published September 5, 2026 · How we edit Ganymede…...
Nearly every element in your body except hydrogen was forged by stars—the calcium in your bones and much of the iron in your blood came through ancient supernovae, while the hydrogen flowing through you was born before the first star existed.
1+ week, 1+ day ago (982+ words) Hydrogen predates the stars, while generations of stellar fusion, supernovae and galactic recycling supplied the heavier elements now arranged into living bodies....
By the age of eight, a girl in northeastern Brazil was working through sky-survey images on two computer screens and had logged 18 preliminary asteroid detections; if confirmed, they would make her younger than Luigi Sannino, who was 18 when he set the r
1+ week, 1+ day ago (592+ words) A Brazilian girl's methodical scan of deep-space data threatens to upend a record that's stood for a quarter century, raising questions about who gets access to the tools of discovery. By The Daily Orbit · Edited by Mal James Published September…...
Scientists found a 3.7-billion-year-old chemical fingerprint in Australia’s oldest rocks that lines up with Apollo samples when traced back through time — strengthening evidence that Earth and the Moon were mixed together in a giant ancient impact
1+ week, 2+ day ago (381+ words) A distant lunar sample and Earth's most ancient rocks are telling the same isotopic story—one that only makes sense if a catastrophic collision once scrambled our planet and its future Moon together....