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Planetary Sciences Dec 11, 2024

Warm Saturn-sized exoplanet discovered with TESS

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has detected a new exoplanet orbiting a distant star. The newfound alien world, designated TOI-4994 b, is warm and slightly smaller ...

Other Nov 20, 2024

Curiosity, images, and scientific exploration: New book by physicist explores remarkable phenomena

When we gaze at nature's remarkable phenomena, we might feel a mix of awe, curiosity, and determination to understand what we are looking at. That is certainly a common response for MIT's Alan Lightman, a trained physicist ...

Planetary Sciences Oct 28, 2024

HD 28185 c is not a brown dwarf but a massive planet, study finds

Astronomers from the University of Southern Queensland (UniSQ) in Australia and elsewhere have reinvestigated a planetary system known as HD 28185, known to contain a gaseous giant exoplanet and an outer companion, believed ...

Planetary Sciences Oct 25, 2024

Saturn's moon Titan has insulating methane-rich crust up to six miles thick

Saturn's largest moon, Titan, is the only place other than Earth known to have an atmosphere and liquids in the form of rivers, lakes and seas on its surface. Because of its extremely cold temperature, the liquids on Titan ...

Astronomy Oct 14, 2024

Saturn Trojan asteroid confirmed

A small international team of astronomers and astrophysicists has confirmed that asteroid 2019 UO14 is a Trojan asteroid of Saturn. The team has posted a paper describing their study of the asteroid on the arXiv preprint ...

Planetary Sciences Oct 9, 2024

Polar jet stream could reveal Saturn's rotational period

A hexagon-shaped atmospheric phenomenon first spotted on Saturn by Voyager 1 and Voyager 2 has intrigued scientists since the 1980s. More recently, NASA's Cassini mission has periodically observed the hexagon and its embedded ...

Astrobiology Oct 7, 2024

NASA is launching a major mission to look for habitable spots on Jupiter's moon Europa

On October 10, NASA is launching a hotly anticipated new mission to Jupiter's fourth-largest moon, Europa.

Planetary Sciences Sep 18, 2024

Hidden craters reveal Earth may once have had a ring—like Saturn

The rings of Saturn are among the most famous and spectacular features in the solar system. Earth may once have had something similar.

Planetary Sciences Sep 10, 2024

New dense sub-Saturn exoplanet discovered

Using the Transiting Exoplanet Survey Satellite (TESS), astronomers from the Physical Research Laboratory (PRL) in Ahmedabad, India and elsewhere, have detected a new sub-Saturn exoplanet with a relatively high density. The ...

Astronomy Aug 2, 2024

Study of comet A117uUD data suggests it was put on a 'hyperbolic trajectory' during pass by Saturn

A pair of astrophysicists from Ciudad Universitaria and Universidad Complutense de Madrid, both in Spain, report evidence that comet A117uUD was put on its current "hyperbolic trajectory" when it passed close to Saturn two ...

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