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Astrobiology Feb 19, 2025

Sulfur may be a new tool for finding alien life

Astronomers have identified sulfur as a potentially crucial indicator in narrowing the search for life on other planets. While sulfur itself is not necessarily an indication of habitability, significant concentrations of ...

Astronomy Feb 19, 2025

What would actual scientific study of UAPs look like?

For those who missed the memo, UFOs (unidentified flying objects) are now called UAPs (unidentified aerospace-undersea phenomena). The term UFO became so closely tied to alien spacecraft and fantastical abduction stories ...

Astronomy Feb 19, 2025

DESI uncovers 300 intermediate-mass black holes plus 2,500 active black holes in dwarf galaxies

Using early data from the Dark Energy Spectroscopic Instrument (DESI), a team of scientists have compiled the largest sample ever of dwarf galaxies that host an actively feeding black hole, as well as the most extensive collection ...

Astrobiology Feb 19, 2025

Cosmic radiation from supernova altered virus evolution in Africa, study suggests

Isolated by mountains along the East African Rift is Lake Tanganyika. More than 400 miles long, it is the continent's deepest lake and accounts for 16% of the world's available freshwater. Between 2 and 3 million years ago, ...

Astronomy Feb 18, 2025

Mission accomplished for space telescope Gaia

The space telescope Gaia has created the largest three-dimensional map of the Milky Way ever. On January 15, 2025, Gaia shut down after 11 years in space. But the research on data Gaia collected will continue for many years ...

Astronomy Feb 18, 2025

Flickers and flares: JWST reveals Milky Way's central black hole constantly bubbles with light

The supermassive black hole at the center of the Milky Way appears to be having a party—and it is weird, wild and wonderful.

Planetary Sciences Feb 18, 2025

First 3D observations of an exoplanet's atmosphere reveal a unique climate

Astronomers have peered through the atmosphere of a planet beyond the solar system, mapping its 3D structure for the first time. By combining all four telescope units of the European Southern Observatory's Very Large Telescope ...

Astronomy Feb 17, 2025

Rho Cas and its kin: Study provides new insights into the mysterious outbursts of yellow hypergiants

A recent five-year study has uncovered new insights into the properties of yellow hypergiants, a heavy star class known for their dramatic outbursts. Scientists focused on Rho Cassiopeiae (Rho Cas), HR 8752, and HR 5171A, ...

Astrobiology Feb 17, 2025

A new theory explains how water first arrived on Earth

When Earth first formed, it was too hot to retain ice. This means all the water on our planet must have originated from extraterrestrial sources. Studies of ancient terrestrial rocks suggest liquid water existed on Earth ...

General Physics Feb 14, 2025

New optical tech boosts gravitational-wave detection capabilities

In a paper published earlier this month in Physical Review Letters, a team of physicists led by Jonathan Richardson of the University of California, Riverside, showcases how new optical technology can extend the detection ...

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