Feed aggregator

Stars come in bunches.

APOD - Tue, 01/28/2025 - 9:07am

Stars come in bunches. Stars come in bunches.


Innovation 'sifts' space for mysteries

Science Daily - Mon, 01/27/2025 - 8:10pm
Astronomers and engineers have developed a specialized system for their radio telescope to rapidly detect mysterious fast radio bursts and other space phenomena.

Dwarf planet Ceres: Building blocks of life delivered from space

Science Daily - Mon, 01/27/2025 - 4:19pm
The dwarf planet is a bizarre, cryovolcanic world. However, the organic deposits discovered on its surface so far are unlikely to originate from its interior. The organic material found in a few areas on the surface of dwarf planet Ceres is probably of exogenic origin. Impacting asteroids from the outer asteroid belt may have brought it with them.

How Titan maintains its atmosphere

Science Daily - Mon, 01/27/2025 - 12:41pm
Scientists have performed laboratory experiments to better understand how Saturn's moon Titan can maintain its unique nitrogen-rich atmosphere. Titan is the second largest moon in our solar system and the only one that has a significant atmosphere.

Why does this comet have so many tails?

APOD - Mon, 01/27/2025 - 9:07am

Why does this comet have so many tails? Why does this comet have so many tails?


Stardust in the Perseus Molecular Cloud

APOD - Sun, 01/26/2025 - 9:07am

Clouds of stardust drift through Clouds of stardust drift through


Comet G3 ATLAS: a Tail and a Telescope

APOD - Sat, 01/25/2025 - 9:07am

 a Tail and a Telescope Comet G3 ATLAS: a Tail and a Telescope


NGC 7814: Little Sombrero

APOD - Fri, 01/24/2025 - 9:07am

Point your telescope toward the high flying constellation Point your telescope toward the high flying constellation


What's that in the sky?

APOD - Wed, 01/22/2025 - 9:07am

What's that in the sky? What's that in the sky?


Astronomers thought they understood fast radio bursts: A recent one calls that into question

Science Daily - Tue, 01/21/2025 - 4:20pm
Fast radio bursts are mysterious and brief flashes of radio emissions that were thought to be produced by magnetars, highly magnetized rotating neutron stars. Yet magnetars appear primarily in young star clusters. A repeating burst discovered last year has been pinpointed to the distant outskirts of an old but massive elliptical galaxy where, theoretically, such stars would long since have disappeared. Does this mean magnetars are not the source of FRBs?

Extreme supersonic winds measured on planet outside our Solar System

Science Daily - Tue, 01/21/2025 - 12:57pm
Astronomers have discovered extremely powerful winds pummeling the equator of WASP-127b, a giant exoplanet. Reaching speeds up to 33,000 km/h, the winds make up the fastest jet-stream of its kind ever measured on a planet. The discovery provides unique insights into the weather patterns of a distant world.

First fast radio burst traced to old, dead, elliptical galaxy

Science Daily - Tue, 01/21/2025 - 12:56pm
Astronomers previously thought all FRBs were generated by magnetars formed through the explosions of very young, massive stars. But new FRB is pinpointed to the outskirts of 11.3-billion-year-old galaxy without young, active stars -- calling those assumptions into question. 'Just when you think you understand an astrophysical phenomenon, the universe turns around and surprises us,' researcher says.

Why does Comet ATLAS have such colorful tails?

APOD - Tue, 01/21/2025 - 9:07am

Why does Comet ATLAS have such colorful tails? Why does Comet ATLAS have such colorful tails?


What would it look like to land on Saturn's moon Titan?

APOD - Mon, 01/20/2025 - 9:07am

What would it look like to land on Saturn's moon Titan? What would it look like to land on Saturn's moon Titan?


Full Moon, Full Mars

APOD - Sun, 01/19/2025 - 9:07am

Full Moon, Full Mars Full Moon, Full Mars


Supernova Remnant Cassiopeia A

APOD - Sat, 01/18/2025 - 9:07am

Supernova Remnant Cassiopeia A Supernova Remnant Cassiopeia A


NASA's Hubble traces hidden history of Andromeda galaxy

Science Daily - Fri, 01/17/2025 - 5:13pm
In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby stellar island to our Milky Way -- the magnificent Andromeda galaxy (Messier 31). It can be seen with the naked eye on a very clear autumn night as a faint cigar-shaped object roughly the apparent angular diameter of our Moon. A century ago, Edwin Hubble first established that this so-called 'spiral nebula' was actually very far outside our own Milky Way galaxy -- at a distance of approximately 2.5 million light-years or roughly 25 Milky Way diameters.

The universe is expanding too fast to fit theories: Hubble tension in crisis

Science Daily - Fri, 01/17/2025 - 4:12pm
The Universe really seems to be expanding fast. Too fast, even. A new measurement confirms what previous -- and highly debated -- results had shown: The Universe is expanding faster than predicted by theoretical models, and faster than can be explained by our current understanding of physics. This discrepancy between model and data became known as the Hubble tension. Now, results provide even stronger support to the faster rate of expansion.

M83: The Southern Pinwheel

APOD - Fri, 01/17/2025 - 9:07am

Beautiful and bright Beautiful and bright


This tiny galaxy is answering some big questions

Science Daily - Thu, 01/16/2025 - 4:12pm
Leo P, a small galaxy and a distant neighbor of the Milky Way, is lighting the way for astronomers to better understand star formation and how a galaxy grows. Scientists have reported finding that Leo P 'reignited,' reactivating during a significant period on the timeline of the universe, producing stars when many other small galaxies didn't.

Pages

Subscribe to STAR Astronomy aggregator