Stars of all ages and masses emit electromagnetic energy in different ways, and these emissions attract the attention of astronomers. Each of these emissions is a clue to how stars form, evolve, and even die. Young stars are known for their high luminosity and their high level of activity. They have strong stellar winds and powerful magnetic fields.
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Gemini North Sees Brightening Interstellar Comet 3I/ATLAS in Detail
One of the world’s most powerful instruments reveals interstellar comet 3I/ATLAS as it heads towards perihelion.
This Ancient Pristine Galaxy Validates the Big Bang
Our understanding of the Universe begins with the Big Bang, a moment in time where the Universe began expanding into what we see around us now. Big Bang nucleosynthesis describes how only the lightest elements were created originally: hydrogen, helium, and a tiny bit of lithium. For elements heavier than those, which astrophysicists call metals, a generation of stars had to live and die.
Deepening stirling engine analysis: optimized model offers more accurate performance predictions
Multiple space agencies plan to return astronauts to the Moon by the end of this decade. Along with commercial and international partners, these efforts aim to create infrastructure that will ensure a "sustained program of lunar exploration and development." This includes NASA's Artemis Program, China's International Lunar Research Station (ILRS), and the ESA's Moon Village, all of which consist of creating lunar habitats around the South Pole-Aitken Basin. Providing power for these bases is a significant challenge given the cycle of lunar day and night, which lasts for two weeks at a time.
Newly discovered 'cosmic unicorn' is a spinning dead star that defies physics: 'We have a real mystery on our hands'
Two teams of astronomers have simultaneously discovered a strange, spinning dead star that seems to defy our current understanding of both neutron stars and white dwarfs.
Live coverage: SpaceX to launch 24 Starlink satellites into polar orbit on Falcon 9 rocket from California
File: A SpaceX Falcon 9 rocket stands in the launch position during sunset at Space Launch Complex 4 East (SLC-4E) at Vandenberg Space Force Base in California. Image: SpaceX
SpaceX is preparing for a rare launch of its Starlink Version 2 Mini satellites into a polar orbit shortly after sunset on Friday night.
The 2025 Southern Delta Aquariid meteor shower is upon us! Here's what you need to know
The Southern Delta Aquariids are active alongside the trusty Perseid meteor shower.
Record-breaking high-altitude shot of sun's surface captured from one of Europe's tallest mountains (photo)
"The mountaineer defies gravity; the astronomer looks up. Both seek to reach the unreachable."
'Star Trek: Strange New Worlds': Jess Bush and Martin Quinn talk feeling comfortable in their characters for Season 3 (exclusive)
'I'm trying to make it as realistic as possible, so that a modern day Scottish person could see themselves in space one day.'
Space station astronauts bid farewell to private Ax-4 crew | On the ISS this week July 14-18, 2025
The Expedition 73 and Axiom Mission 4 crews wrapped up their time together as science and maintenance activities continued aboard the International Space Station.
Federal Chancellor of Austria welcomed to ESA Headquarters
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On Friday 18 July, His Excellency Christian Stocker, Federal Chancellor of Austria, visited ESA Headquarters in Paris receiving a tour of the site from Director General Josef Aschbacher.
Meteor impact may have triggered massive Grand Canyon landslide 56,000 years ago
A meteorite impact thousands of years ago may have triggered a landslide in the Grand Canyon and reshaped the Colorado River that runs through the national park.
Stratospheric skydiver Felix Baumgartner dies at 56 in tragic paragliding accident
Baumgartner is most well-known for breaking the sound barrier with his body during a freefall from the stratosphere in 2012.
See Venus, the moon and fiery star Aldebaran form a dawn triangle this weekend
Rise and shine! Venus, Aldebaran and the moon team up for a dazzling dawn display.
The new 'Alien: Earth' trailer is here, and we can't wait to be terrified by xenomorphs once again (video)
Hulu released a new trailer for "Alien: Earth," a new sci-fi horror miniseries from "Fargo" creator Noah Hawley that premieres on Aug. 12.
The Vera Rubin Observatory could find dozens of interstellar objects
As astronomers rush to study a newly discovered comet from beyond our solar system, a powerful new observatory may turn rare interstellar sightings into routine events.
This excellent value for money star projector is on sale for less than $14
We've tested numerous star projectors and one of the best value options, the YGiTK Northern Galaxy Lights projector, is 26% off on Amazon, now under $14.
Exoplanet is shrinking before the X-ray eyes of NASA's Chandra spacecraft: 'The future for this baby planet doesn’t look great'
Astronomers have used the Chandra X-ray telescope to observe an exoplanet as it disintegrates because its parent star is bombarding it with radiation.
A lunar eclipse steals the show in a colorful sky | Space photo of the day for July 18, 2025
A lunar eclipse was seen over the U.S. Naval Observatory Deep South Telescope in Chile.
NASA workers plan 'Moon Day' protest on July 20 to oppose mass layoffs, budget cuts. 'This year has been an utter nightmare that has not stopped.'
Workers from within NASA will protest the space agency leadership's "preemptive over-compliance" of the White House's proposed budget, gutting science and eliminating jobs.
