Planetary Science
Europa Clipper is launching to solve an alien mystery
Taking off no earlier than October 10, the spacecraft will repeatedly buzz Europa in search of water, energy and organic compounds.
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Taking off no earlier than October 10, the spacecraft will repeatedly buzz Europa in search of water, energy and organic compounds.
Betelgeuse has a sequel — in the form of a companion star that's about the same mass as the sun, orbiting it about once every 2,100 days.
Starlink satellites unintentionally emit radio waves that appear more than 10 million times brighter than natural sources, as seen by ground-based radio telescopes.
The X-ray pulses could deflect asteroids up to 4 kilometers wide, a new study suggests.
Theoretical physicist Tracy Slatyer proposes new scenarios for dark matter and helped discover the Fermi bubbles.
Cosmological data suggest unexpected masses for neutrinos, including the possibility of zero or negative mass.
The two plasma fountains, spanning 23 million light-years, could shape cosmic structures far beyond their home galaxy.
Flybys of primordial black holes may occur once a decade. Tweaks to the orbits of planets and GPS satellites could give away their presence.
In a first, astronomers captured how convective forces power the quick bubbling movement of gas cells on the surface of a distant, massive star.
The Earth’s ambipolar electric field is weak but strong enough to control the shape and evolution of the upper atmosphere.
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