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News
The James Webb Space Telescope studied 72 young star systems and revealed why Jupiter-like planets face a race against time: they must acquire their massive atmospheres within the gas-rich disc’s first several million years, before jets and disc winds disperse the material needed to build them.
30+ min ago (659+ words) Webb mapped molecular winds, atomic winds and jets across 72 planet-forming discs, tracing how the gas reservoir needed by giant planets changes with age....
On Venus, the atmosphere presses down with 92 times Earth’s sea-level pressure—the equivalent of standing about 900 metres beneath the ocean—while the surface remains near 465°C, hot enough to keep lead permanently molten.
8+ hour, 25+ min ago (1061+ words) Venus combines ocean-depth pressure with furnace heat, but its supercritical carbon-dioxide atmosphere is stranger than either comparison suggests....
On the night of 27 August 2026 the Earth's shadow will slide across a full Moon and turn it copper for more than an hour, a partial lunar eclipse visible from the Americas without any equipment except a clear sky
2+ day, 8+ hour ago (28+ words) Tomorrow night, weather permitting, the full Moon over the Americas is going to do something it will not do again for more than two years. Beginning in the...
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
3+ day, 20+ hour 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....
Astronomers have measured a Saturn-mass object apparently drifting through the Milky Way without a star—and microlensing surveys suggest that unseen free-floating worlds may outnumber the galaxy’s stars, perhaps by as much as 20 to one.
4+ day, 1+ hour ago (786+ words) A directly weighed Saturn-mass lens strengthens the free-floating planet case, but the estimate of roughly 20 such worlds per star remains a broad, model-dependent population inference....
A microwave-oven-sized experiment inside NASA’s Perseverance rover made history in 2021 by extracting oxygen from Mars’s carbon-dioxide atmosphere—the first demonstration of producing a usable resource from the environment of another planet.
5+ day, 10+ hour ago (1493+ words) MOXIE's first hour on Mars yielded only 5.4 grams of oxygen, but it crossed a larger threshold: another planet had become the source of a useful consumable. By Space Daily Editorial Team · Edited by Lachlan Brown Published August 23, 2026 · How we edit…...
NASA is set to launch a telescope on August 30 that could detect around 100,000 new worlds — more than all previous planet-hunting observatories have found combined — using a camera that captures 100 times more sky than Hubble in a single shot.
6+ day, 6+ hour ago (1233+ words) Roman's 288-megapixel camera will repeatedly watch 100 million bulge stars, with simulations forecasting around 100,000 transiting planets plus a distinct microlensing census. By Lachlan Brown · Edited by Lachlan Brown Published August 22, 2026 · How we edit That wide view is why NASA says Roman…...
Voyager 2 discovered ten moons when it flew past Uranus in 1986. Nearly 40 years later, James Webb found one it missed: Uranus's 29th known moon, a tiny world only about 10 kilometres wide hiding among the planet's inner moons.
6+ day, 13+ hour ago (1080+ words) Webb's ten long infrared exposures found S/2025 U1 between Ophelia and Bianca, extending a moon census begun by Voyager 2 while exposing how much remains unresolved around Uranus....
Pluto has a blue twilight: when New Horizons looked back after its 2015 flyby and saw the dwarf planet backlit by the Sun, its atmospheric haze turned out to scatter sunlight blue — a colour that surprised even the mission’s scientists.
6+ day, 16+ hour ago (1005+ words) New Horizons saw Pluto’s layered organic haze scatter sunlight blue in a calibrated look-back view, even though the particles themselves were probably grey or red....
The Moon’s far side is not darker, but it is rougher: its crust is about 60 kilometres thick versus 40 on the Earth-facing side, so ancient impacts struggled to punch through and flood it with the dark lava seas that made the familiar face we see
6+ day, 18+ hour ago (1670+ words) The far side's thicker crust impeded magma, but GRAIL and Chang'e-6 show that heat, chemistry and lithospheric cooling also shaped the Moon's unequal faces. By Lachlan Brown · Edited by Lachlan Brown Published August 21, 2026 · How we edit The Moon’s far side…...