Oct 11, 2023 by Natali Anderson

The collision between two exoplanets of several to tens of Earth masses occurred at a distance of 2-16 AU (astronomical units) from the young solar-like...

Sep 27, 2023 by Natali Anderson

TRAPPIST-1 is a nearby system of seven Earth-sized, temperate, rocky exoplanets transiting a Jupiter-sized ultracool red dwarf, ideally suited for in-depth...

Sep 26, 2023 by News Staff

Lava worlds are a potential emerging population of hot super-Earth exoplanets that are on close-in orbits around their host stars, with likely partially...

Sep 26, 2023 by News Staff

The search for definitive biosignatures — unambiguous markers of past or present life — is a central goal of paleobiology and astrobiology....

Sep 19, 2023 by Natali Anderson

HIP 81208 is the first binary stellar system with substellar companions around each stellar component ever found by direct imaging. Astronomers thought...

Sep 11, 2023 by Natali Anderson

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have discovered carbon dioxide and methane in the atmosphere of the habitable zone exoplanet...

Sep 4, 2023 by Enrico de Lazaro

Astronomers believe the peculiar composition of the Neptune-sized planet TOI-1853b is the result of a giant planetary clash. Heavy elements dominate the...

Aug 31, 2023 by Natali Anderson

Astronomers report the discovery and validation of two long-period giant exoplanets orbiting the K-dwarf star TOI-4600, first detected using observations...

Aug 28, 2023 by Enrico de Lazaro

Chromium hydride is often used to probe atmospheric temperatures and classify objects called brown dwarfs into spectral types because it’s abundant only...

Aug 4, 2023 by Enrico de Lazaro

Using data from TRAPPIST-South/North, SPECULOOS, and MuSCAT3 facilities, astronomers have discovered an unusual Jupiter-sized exoplanet orbiting the red...

Jul 31, 2023 by Enrico de Lazaro

A process called photoevaporation is a potential explanation for several features within exoplanet demographics. Atmospheric escape observed in young Neptune-sized...

Jul 26, 2023 by News Staff

The formation of giant planets has traditionally been divided into two pathways: core accretion and gravitational instability. However, in recent years,...

Jul 25, 2023 by Enrico de Lazaro

Terrestrial and sub-Neptune exoplanets are expected to form in the inner regions of protoplanetary disks around their parent stars. Water plays a key role...

Jul 20, 2023 by Enrico de Lazaro

PDS 70, a young K7-type star some 370 light-years away from Earth in the constellation of Centaurus, is a unique target for planetary formation studies...

Jul 10, 2023 by Enrico de Lazaro

Aside from the Moon, the brightest object in our night sky is planet Venus, whose thick cloud layer reflects around 75% of the Sun’s light. By comparison,...

Jul 4, 2023 by Enrico de Lazaro

The giant exoplanet AF Leporis b orbits a 1.2-solar-mass star in the 24-million-year-old beta Pictoris moving group. The direct image of the giant exoplanet...

Jun 28, 2023 by News Staff

The giant planet 8 Ursae Minoris b (also known as Halla) orbits the core-helium-burning red giant star 8 Ursae Minoris (Baekdu). At a distance of only...

Jun 28, 2023 by News Staff

Planets form in dusty, gas-rich circumstellar disks around young stars, while at the same time, the planet formation process alters the physical and chemical...

Jun 26, 2023 by News Staff

The vital role of a carbon molecule called methyl cation (CH3+) in interstellar carbon chemistry was predicted in the 1970s, but the unique capabilities...

Jun 23, 2023 by News Staff

Seven rocky planets orbit the nearby dwarf star TRAPPIST-1, providing a unique opportunity to search for atmospheres on small planets outside the Solar...