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stars

Earth with stars in the background.
Posted inNews

Thousands of Stars View Earth as a Transiting Exoplanet

Katherine Kornei, Science Writer by Katherine Kornei 22 July 202110 January 2023

Researchers have identified more than 2,000 stars whose past, present, or future vantage points afford a view of Earth passing directly in front of the Sun, a geometry useful for pinpointing planets.

The supergiant Betelgeuse glows red and orange against a dark, starry background. The star’s surface is mottled and emits a faint reddish glow representing its stellar wind. A dark cloud of dust partially obscures the star’s lower left region.
Posted inNews

When Betelgeuse Won’t Explode, You Need a Big Telescope to Prove It

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 30 June 202126 January 2022

Thanks to last-minute telescope time, researchers pieced together the sequence of events that caused Betelgeuse’s Great Dimming last year.

An enormous stellar flare erupts from Proxima Centauri in this artist’s representation.
Posted inNews

Record-Setting Flare Spotted on the Nearest Star to the Sun

Katherine Kornei, Science Writer by Katherine Kornei 24 May 202128 April 2022

Proxima Centauri recently let loose a blast of radiation, and ground- and space-based telescopes detected the record-setting event at wavelengths ranging from radio to the ultraviolet.

Thousands of stars of many colors on a black background
Posted inNews

1.3 Million Pairs of Stars Surround the Sun

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 31 March 202110 January 2023

Roughly half of Sun-like stars have a stellar sibling, and a surprising fraction of those siblings are identical twins.

Image showing the cloud bands on Luhman 16 B
Posted inNews

Seeing Stripes in the Atmosphere of a Brown Dwarf

Damond Benningfield, Science Writer by Damond Benningfield 15 February 202128 January 2022

A planet-hunting satellite’s observations of the nearby system Luhman 16 AB reveal bands of clouds, high-speed jets, and polar vortices.

Stars in the sky
Posted inNews

The Closest Black Hole Is 1,000 Light-Years Away

Katherine Kornei, Science Writer by Katherine Kornei 12 May 202024 May 2022

An unseen object—probably a black hole—orbits with two normal stars in our cosmic neighborhood.

Orange and brown planet-looking object
Posted inNews

Record-Setting Winds on a Nearby Brown Dwarf

Katherine Kornei, Science Writer by Katherine Kornei 16 April 202024 October 2022

Infrared and radio observations reveal zonal winds moving faster than 2,000 kilometers per hour on a “failed star” in our celestial neighborhood.

An artist's impression of a gas giant orbiting a white dwarf star
Posted inNews

Hot White Dwarfs May Reveal Cold Gas Giants

Nola Taylor Redd, Science Writer by Nola Taylor Tillman 2 March 202014 January 2022

The gaseous atmospheres of giant planets may evaporate and accrete onto the dense surfaces of white dwarfs, providing astronomers a new way to detect hidden exoplanets.

a black meteorite sitting on a white table
Posted inNews

Dust Older Than the Sun Sheds Light on Galactic History

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 23 January 202010 January 2023

A small pile of dust grains older than the Sun brings new evidence about the rate at which stars are born in the Milky Way.

Illustration of the interstellar object ‘Oumuamua shedding dust while hurtling toward the distant Sun
Posted inNews

Interstellar Visitors Could Export Terrestrial Life to Other Stars

Nola Taylor Redd, Science Writer by Nola Taylor Tillman 22 January 20204 January 2023

A handful of interstellar objects and long-period comets could have scooped up microorganisms from Earth and carried them to worlds around other stars.

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