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Astrobiology Jun 30, 2025

Enceladus's highly alkaline subsurface ocean may affect search for life

What can the pH level of the subsurface ocean on Enceladus tell us about finding life there? This is what a recent study accepted to Icarus hopes to address as a team of researchers investigated the potential pH level of ...

Astronomy Jun 26, 2025

Webb should be able to detect exo-Jupiters and exo-Saturns

Detecting exoplanets is one thing, but imaging them is another thing entirely. Astronomers can detect them by the way they block their star's light and by the way they make their stars wobble, and from that they can infer ...

Planetary Sciences May 22, 2025

GEMS out of this world: Astronomers find a new Saturn-like exoplanet around an M-dwarf star

An international team of astronomers reports the discovery of a new giant exoplanet around an M-dwarf star (GEMS). The newfound GEMS, designated TOI-5573 b, is comparable in size to Saturn and its mass is estimated to be ...

Astronomy May 20, 2025

Exoplanet's companion found via orbital mechanics variations

Tracking exoplanets via orbital mechanics isn't easy. Plenty of variables could affect how a planet moves around its star, and determining which ones affect any given exoplanet requires a lot of data and a lot of modeling.

Planetary Sciences Apr 24, 2025

Super-Earths are common outside the solar system, new study shows

An international team including astronomers from the Center for Astrophysics | Harvard & Smithsonian (CfA) has announced the discovery of a planet about twice the size of Earth orbiting its star farther out than Saturn is ...

Astrobiology Apr 21, 2025

A new concept for an astrobiology mission to Enceladus

This year's Lunar Planetary Science Conference (2025 LPSC) saw some truly astounding presentations and proposals. These covered a wide range of science and exploration missions that address the priorities of NASA, other space ...

Astronomy Apr 16, 2025

Why some meteor showers are so unpredictable

Why do comets and their meteoroid streams weave in and out of Earth's orbit and their orbits disperse over time? In a paper published in the journal Icarus, two SETI Institute researchers show that this is not due to the ...

Astrobiology Apr 9, 2025

The search for biosignatures in Enceladus' plumes

What kind of mission would be best suited to sample the plumes of Saturn's ocean world, Enceladus, to determine if this intriguing world has the ingredients to harbor life? This is what a recent study presented at the 56th ...

Astrobiology Apr 8, 2025

Saturn's moon Titan could harbor life, but only a tiny amount, study finds

Titan, Saturn's largest moon, is a strange, alien world. Covered in rivers and lakes of liquid methane, icy boulders and dunes of soot-like "sand," its topography has long fascinated scientists and invited speculation on ...

Planetary Sciences Apr 3, 2025

Studying Uranian moons using passive radar sounding

How can Uranus be used to indirectly study its moons and identify if they possess subsurface oceans? This is what a recent study presented at the 56th Lunar and Planetary Science Conference hopes to address as a team of scientists ...

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