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Astronomy & Space news
A new industrial megaproject threatens the view of the world's best observatories
Astronomers have been battling threats to their clear skies on all fronts lately. One of the most notable battles, which we have reported on repeatedly, is the one against Starlink and other mega-constellations of satellites, ...
Astronomy
55 minutes ago
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New model predicts solar storm particle acceleration and escape
The sun, a searing hot sphere of gas primarily composed of hydrogen and helium, boasts surface and outer atmospheric temperatures ranging from 10,000 to 3.6 million degrees Fahrenheit on its surface and its atmosphere's outermost ...
Planetary Sciences
2 hours ago
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Turning the Hubble tension into a crisis: New measurement confirms universe is expanding too fast for current models
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 ...
Astronomy
19 hours ago
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Mars's two distinct hemispheres caused by mantle convection not giant impacts, study claims
Mars has northern and southern hemispheres like Earth, but their defining characteristics are markedly different, a phenomenon known as Martian dichotomy. The Southern Highlands are older, higher in elevation and more cratered ...
Mars's rare disappearing solar wind event explained
Mars's atmosphere and climate are impacted by interactions with solar wind, a stream of plasma comprised of protons and electrons that flows from the sun's outermost atmosphere (corona), traveling at speeds of 400–1,000 ...
Hubble tracks down a 'blue lurker' among stars
Our sun is a lonely star. At least half the stars in our galaxy have binary companions. This was nicely illustrated in the Star Wars movie trilogy where Luke Skywalker watched two suns set on the horizon as seen from his ...
Astronomy
16 hours ago
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A seed-sized signal amplifier chip could boost space communications
Smaller than a strawberry seed, this tiny signal amplifier was produced by the European Space Agency to fill a missing link in current technology, helping to make future radar-observing and telecommunications space missions ...
Space Exploration
16 hours ago
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SpaceX launch accident likely caused by fire that sent trails of flaming debris near the Caribbean
SpaceX suspects a fire may have caused its Starship to break apart during liftoff and send trails of flaming debris near the Caribbean.
Space Exploration
18 hours ago
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Space itself may have created galaxies
According to new research, the earliest seeds of structures may have been laid down by gravitational waves sloshing around in the infant universe.
Astronomy
16 hours ago
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How to glimpse a parade of planets in the January night sky
Six planets grace the sky this month in what's known as a planetary parade, and most can be seen with the naked eye.
Planetary Sciences
17 hours ago
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NASA's IMAP instrument installations complete
With the installation of a charged particle detector on Dec. 3, 2024, all 10 of NASA's Interstellar Mapping and Acceleration Probe (IMAP) science instruments have been fully integrated on the spacecraft.
Space Exploration
19 hours ago
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Image: Hubble captures young stars changing their environments
This NASA/ESA Hubble Space Telescope image peers into the dusty recesses of the nearest massive star-forming region to Earth, the Orion Nebula (Messier 42, M42). Just 1,500 light-years away, the Orion Nebula is visible to ...
Astronomy
22 hours ago
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Image: Hubble reveals Jupiter in ultraviolet light
This NASA Hubble Space Telescope image shows the planet Jupiter in a color composite of ultraviolet wavelengths. Released on Nov. 3, 2023, in honor of Jupiter reaching opposition, which occurs when the planet and the sun ...
Astronomy
17 hours ago
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SpaceX catches Starship booster again, but upper stage explodes
Hours after Jeff Bezos's Blue Origin nailed its first-ever orbital mission, SpaceX seized back the spotlight on Thursday as its latest test of Starship, its gargantuan next-generation megarocket, ended with the upper stage ...
Space Exploration
Jan 17, 2025
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Astronomers capture unprecedented view of supermassive black hole in action
Active galactic nuclei are supermassive black holes at the center of certain galaxies. As matter falls into these black holes, enormous amounts of energy are released, making active galactic nuclei, or AGN, one of the most ...
Astronomy
Jan 17, 2025
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Astrophysicists reveal structure of 74 exocomet belts orbiting nearby stars
Astrophysicists led by a team from Trinity College Dublin have—for the first time—imaged a large number of exocomet belts around nearby stars, and the tiny pebbles within them. The crystal-clear images show light being ...
Astronomy
Jan 17, 2025
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Exoplanets around red dwarfs face extreme space weather, Chandra finds
Planets around other stars need to be prepared for extreme weather conditions, according to a new study from NASA's Chandra X-ray Observatory and ESA's (European Space Agency's) XMM-Newton that examined the effects of X-rays ...
Astrobiology
Jan 17, 2025
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Study provides insight into how some species thrive in dark, oxygen-free environments
Most life on Earth relies on the sun's energy for survival, but what about organisms in the deep sea that live beyond the reach of its rays? A new study led by Woods Hole Oceanographic Institution (WHOI), published in The ...
Astrobiology
Jan 17, 2025
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An even ghostlier neutrino may rule the universe
Strange "right-handed" neutrinos may be responsible for all the matter in the universe, according to new research.
Astronomy
Jan 16, 2025
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Bezos' Blue Origin has successfully launched its New Glenn rocket to orbit, a feat 15 years in the making
Just past 2 a.m. Eastern time on Jan. 16, 2025, a new rocket blasted off from the Cape Canaveral Space Force Station in Florida. By reaching orbit, Blue Origin's New Glenn rocket launch has marked a milestone for a commercial ...
Space Exploration
Jan 16, 2025
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