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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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Mars’s surface has long been divided between northern lowlands and southern highlands, but its deep interior was generally modelled as roughly symmetrical. Now a Caltech-led team publishing in Nature has inferred that the mantle beneath the southern highlands is 200 to 400 degrees Celsius hotter than beneath the north—an immense thermal anomaly that may still produce pockets of partially molten rock.
18+ hour, 19+ min ago (1228+ words) Orbiter tracking reveals a north-south difference in Mars's mantle rigidity consistent with a 200 to 400°C thermal anomaly, while leaving the presence of partial melt unresolved....
Opportunity’s solar panels were mysteriously getting cleaner long before the rover ever saw the suspected culprit: it did not photograph its first Martian dust devil until six and a half years after landing.
2+ day, 6+ hour ago (1267+ words) Opportunity’s changing power output recorded repeated wind-cleaning events years before its camera caught a dust devil. The six-and-a-half-year gap reveals the difference between detecting an effect and identifying its cause. By Mission Notes · Edited by Lachlan Brown Published September 10, 2026 · How…...
NASA lost a $125 million spacecraft at Mars because one engineering team used English units while another expected metric — the mismatch quietly pushed the orbiter onto the wrong trajectory after nine months in space
2+ day, 13+ hour ago (231+ words) A decade of planning and a quarter-billion dollars in funding vanished in seconds when two teams speaking different measurement languages sent a spacecraft crashing into Mars....
Olympus Mons grew so massive that parts of its lower flanks catastrophically collapsed, sending broken rock sliding hundreds of kilometres across the Martian plains—possibly lubricated when hot lava melted buried ice.
3+ day, 9+ hour ago (718+ words) Orbital evidence links Olympus Mons's aureole to immense flank failures. Water or ice may explain the long runout, but lava-driven melting remains one proposed mechanism....
Despite being only about half Earth’s diameter, Mars has nearly as much total surface area as all of Earth’s continents combined—the difference is that oceans cover 71% of our planet, while modern Mars has no permanent bodies of liquid water.
6+ day, 18+ hour ago (980+ words) Mars has about 97% as much surface area as Earth’s dry land, a geometrical coincidence created by the oceans covering most of the larger planet....
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, 1+ 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....
Hollywood exaggerates Martian storms in a specific and measurable way: because Mars’s atmosphere is roughly 100 times thinner than Earth’s, a 60-mph gust would push an astronaut about as hard as a gentle 6-to-8-mph breeze on Earth.
1+ week, 3+ day ago (1221+ words) Wind loading depends on air density and speed squared. In Mars's thin surface atmosphere, a 60 mph gust exerts roughly the same push as a 6-to-8 mph Earth breeze, while dust remains a serious hazard to power and machinery....
A Soviet probe survived the journey to Venus and began testing the surface of another world — only for its soil instrument to come down on a discarded piece of the spacecraft itself and send the mistaken reading all the way back to Earth
1+ week, 4+ day ago (425+ words) The Soviet probe that conquered Venus's hellish surface may have been undone by its own debris. By Space Daily Editorial Team Published September 1, 2026 · How we edit Of all the ways to be humbled by another planet, tripping over your own…...
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, 5+ 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....
Deimos may owe both its enormous south-polar depression and strangely smooth surface to a single 300-metre asteroid impact — a blow whose debris spread around the entire moon and would mean Mars’s smaller satellite is essentially a porous rubble pile
2+ week, 5+ day ago (1186+ words) A 320-metre oblique impact can reproduce Deimos's giant polar cavity while redistributing debris across the moon, implying an extremely weak and porous interior....