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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 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
2+ day, 18+ min 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....
On September 21, 2003, controllers drove Galileo into Jupiter at nearly 108,000 miles per hour. The spacecraft had found evidence of a saltwater ocean beneath Europa’s ice, and with its propellant running low, NASA could not guarantee that the unsterilized orbiter would never crash into the potentially habitable moon carrying microbes from Earth.
4+ day, 1+ hour ago (811+ words) Galileo’s final plunge was a planetary-protection decision: NASA used the orbiter’s remaining control to keep an unsterilised spacecraft away from Europa....
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
1+ week, 6+ 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, 23+ 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, 1+ day 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…...
When Georgia Tech scientists tipped out a tumbler of Titan-like organic grains, 2 to 5 percent refused to fall, held to the walls by static electricity. In comparable experiments with terrestrial sand and volcanic ash, nothing stuck.
1+ week, 3+ day ago (875+ words) Organic grain analogues clung to a nitrogen-filled tumbler after becoming charged, but later tholin tests show why the result cannot yet be assumed to describe Titan's real dunes....
Saturn's rings look ancient, but data from the Cassini spacecraft suggests they are surprisingly young, likely no more than a few hundred million years old, meaning dinosaurs walked the Earth in a solar system where Saturn had no rings at all
1+ week, 5+ day ago (577+ words) A cosmic clock reset: Saturn's iconic rings may have formed after the dinosaurs vanished, rewriting what we thought we knew about the solar system's history....
Venus comes nearer to Earth than any other planet, yet averaged over time the closest planet to Earth is Mercury — and by the same arithmetic Mercury is also the closest planet to Neptune, because a body hugging the Sun can never wander far from anyone
1+ week, 6+ day ago (290+ words) The planet we think is closest to Earth isn't—and neither is any other planet what it seems when you average the numbers correctly....
Jupiter pulls so hard on Io that the moon’s solid ground rises and falls by as much as 100 metres every orbit — a tide in rock the height of a 30-storey building, and the repeated flexing powers the most volcanically active world in the Solar System
3+ week, 2+ day ago (1555+ words) Io's ground can move by as much as 100 metres as Jupiter's changing tide flexes the moon, converting orbital energy into the heat that drives its volcanoes. By Lachlan Brown · Edited by Lachlan Brown Published August 21, 2026 · How we edit Io looks…...
A moon does not need sunlight to keep its interior warm. Io is ablaze with volcanoes, Europa hides an ocean, and Enceladus leaks heat and water from its south pole into space — worlds kept active by the gravitational grip of planets that never lets go.
3+ week, 3+ day ago (988+ words) Tidal heating turns orbital motion into internal energy. The same mechanism drives Io's lava, helps preserve Europa's ocean and powers Enceladus's south-polar vents. By Deep Field · Edited by Lachlan Brown Published August 20, 2026 · How we edit Sunlight is only one way…...