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Astronomy Jul 28, 2026

Tabby's star may be orbited by a planetary-mass companion

By analyzing data from NASA's Transiting Exoplanet Survey Satellite (TESS) and conducting new radial velocity measurements, U.K. and French astronomers have found evidence that the mysterious Tabby's star may be orbited by ...

Astronomy Jul 28, 2026

JWST could spot volcanic 'exo-Ios' around super-Jupiters

Jupiter's moon Io is the most volcanically active planetary body in the solar system, boasting hundreds of active volcanoes that spew molten lava into space. This activity results from a process called tidal heating, in which ...

Astronomy Jul 27, 2026

Mercury reveals short-lived radiation belts during its swing farther from the sun

Mercury was long considered the exception to the rule that magnetic planets have radiation belts similar to Earth's Van Allen belts, but a new study by University of Michigan Engineering and the University of California, ...

Astrobiology Jul 24, 2026

Why Europa's hidden ocean may be more difficult to reach than scientists thought

Europa, one of Jupiter's icy moons, has long fascinated scientists because of what may lie beneath its frozen shell: a global ocean of liquid water. That hidden ocean has made Europa one of the most compelling places in the ...

Astronomy Jul 24, 2026

Io's volcanic output offers a 40‑day forecast of plasma density in Jupiter's magnetosphere

A careful statistical comparison of observations recorded by NASA's Juno mission and the Planetary Science Institute's Io Input Output observatory (IoIO) shows that IoIO observations reliably predict the density of Jupiter's ...

Astronomy Jul 24, 2026

Should scientists have research 'reserves' on the moon?

The worlds of the solar system are exciting and, so far, mostly pristine places for planetary scientists to study. As space missions continue to travel to Mars, Europa, asteroids and other worlds, questions arise about keeping ...

Planetary Sciences Jul 22, 2026

Juno takes temperature of Jupiter's fiery moon Io

NASA's Juno mission has provided the first measurements of the temperature below the surface of Jupiter's moon Io, revealing significant heating within the shallow subsurface of the most volcanically active world in the solar ...

Astronomy Jul 22, 2026

Jupiter-mass 'exomoon' orbiting brown dwarf challenges cosmic labels

Observations made with the European Southern Observatory's Very Large Telescope (ESO's VLT) have revealed evidence for a moon-like object in the CD-35 2722 system. Unlike moons in our solar system, the newly found object ...

Planetary Sciences Jul 18, 2026

NASA's Psyche mission delivers Mars flyby data, time-lapse video

The spacecraft aced its encounter with Mars. Now, mission scientists are studying a trove of data from the flyby in preparation for its arrival at asteroid Psyche in 2029.

Biotechnology Jul 17, 2026

Researchers identify class of 'oddball' meteorite that killed the dinosaurs

A rare CO chondrite meteorite was the probable impacter that struck Earth 66 million years ago, wiping out 75% of Earth's species, including nonavian dinosaurs. These findings are published in Science Advances. Researchers ...

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