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 ...
For decades, the ultracompact X-ray binary 4U 1626−67 has behaved like a machine that periodically changes gear. Its neutron star spun faster for years, slowed for roughly 18 years, then began ...
Pillow lavas look like a heap of stone beanbags, slumped one over another where molten rock hit cold seawater and stiffened on the spot. The ones exposed across a stretch of Western Australia’s ...
Artist's concept of a young star surrounded by a protoplanetary disk. This is a representative illustration, not a reconstruction of the early Solar System or a figure from the new study. Credit: NASA ...
Fine filaments and root hairs in topsoil. Arbuscular mycorrhizal hyphae themselves are far thinner — 10 to 50 times narrower than a human hair. It would also stretch a little over a tenth of the way ...
Enhanced-color view of Deimos acquired by the HiRISE camera on NASA's Mars Reconnaissance Orbiter on February 21, 2009. Credit: NASA/JPL-Caltech/University of Arizona ...
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 ...
A bicolor damselfish, one of the two species whose escape responses were measured. Photo: Andy Blackledge, CC BY 2.0. Looming is the word for what an approaching object does to an eye. The image of ...
Zip yourself into a padded cubicle barely wider than your shoulders, strap down so you do not drift into the wall overnight, then try to ignore the fourth sunrise since dinner. NASA writes eight and a ...
Artist's concept showing how accretion may change as pulsar GX 301−2 crosses a dense plasma stream from Wray 977. Left: a turbulent disk forms. Centre: the disk breaks apart and plasma flows directly ...
ALMA and SPHERE views of the young triple star GW Orionis, released by ESO in 2020. Left: ALMA’s radio image of the system’s misaligned dust rings. Right: the SPHERE instrument’s infrared view of the ...
According to the WMO, the meteorological station at Verkhoyansk has been observing temperatures since 1885, one of the longer records anywhere in the high north. The town has a population of slightly ...
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