Deep Field
- Indexed articles, last 90 days
- 353
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- Sep 22, 2026
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- Jul 4, 2026
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ESA and ISRO extend their Cooperative Agreement to 8 January 2032 via letters signed in Paris, adding space weather and exploration work (opens the original)
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The European Space Agency and the Indian Space Research Organisation have extended their Cooperative Agreement by a further five years, to 8 January 2032, through an exchange of letters signed in Paris on 10 September 2026 on the margins of the International Space Summit. The amendment keeps the existing framework intact while widening it to cover space weather, human and robotic exploration, and the sustainability of outer space activities, according to ESA’s announcement of the extension. The
Every 29.5 days, as the Moon passes between Earth and the Sun, our planet ploughs through a vast tail of sodium atoms knocked from the lunar surface and swept outward by sunlight. (opens the original)
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Once every synodic month, the Sun, Moon and Earth move into a geometry that puts Earth inside the Moon’s downstream sodium stream. Neutral atoms released from lunar soil have been accelerated away from the Sun, and our planet’s gravity bends some of their paths into a denser column extending beyond Earth. The event is neither newly discovered nor visible as a glowing trail overhead. It is a well-established feature of the lunar exosphere, detectable with sensitive sodium-filtered cameras around
Astronomers scanning deep-space images by eye found dozens of ghostly dwarf galaxies that previous surveys had missed. (opens the original)
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A deep optical search around three galaxies has produced 47 dwarf-galaxy candidates in a patch of sky where only four had been reported before. The difference is striking, but it needs a precise label: 43 are newly reported candidates, not 43 confirmed satellites. The result, published in Astronomy & Astrophysics, began with astronomers looking through the images themselves. That makes the discovery as much a story about selection as about galaxies. A survey catalogue is not a neutral copy of th
On the dwarf planet Ceres, a lone mountain called Ahuna Mons rises four kilometres from an otherwise flat, cratered plain, built not from lava but from erupting salty brine that froze solid. (opens the original)
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Ceres is a world of subdued relief. Its charcoal-grey surface is crowded with impact scars, but between the craters much of the terrain rolls gently across the dwarf planet. Then one mountain breaks the pattern. Ahuna Mons rises about four kilometres above the plain, standing alone rather than joining a range or forming the central peak of an obvious impact basin. NASA’s Dawn spacecraft revealed the mountain after entering orbit around Ceres in 2015. Its steep flanks, summit depressions and stre
A planet roughly as massive as Jupiter was already growing around Elias 2-24 before the system reached one million years old—even though current models require about five million years to build a Jupiter at Jupiter’s distance, and this planet sits roughly ten times farther out. (opens the original)
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Elias 2-24 b is not merely young by planetary standards. The star, disk and planet are no more than about one million years old, making this the youngest confirmed exoplanet yet reported. The world sits inside a narrow gap in its birth disk about 55 astronomical units from its star, or roughly ten times Jupiter’s present distance from the Sun. The confirmation appears in The Astrophysical Journal Letters in a paper led by Andrea Bernardi of Universidad Diego Portales. NASA describes the object a
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