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Astronomy & Space news
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Calculating the energy requirements for using moon dust to create rocket fuel
An international team of engineers and space scientists has used a variety of assumptions, techniques, and math principles to calculate the energy requirements for using moon dust to create rocket fuel. In their paper published ...
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Jupiter's moon Callisto is very likely an ocean world
More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however, NASA's Galileo spacecraft captured ...
Astrobiology
7 hours ago
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Quantum effects make distant objects move together: New research finds this may happen with ripples in space
Galaxies, planets, black holes: to most people, everything about our Universe sounds and feels enormous. But while it's true that much of what happens millions of light years away is large, there are also processes happening ...
Astronomy
9 hours ago
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Gaia 19cwm is a dwarf nova of WZ Sge type, observations find
Using the Special Astrophysical Observatory (SAO), Russian astronomers have carried out spectroscopic and photometric observations of a cataclysmic variable designated Gaia 19cwm, finding that it is a dwarf nova of the WZ ...
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Celestial odd couple: Massive star and white dwarf caught in X-ray flash
Lobster-eye satellite Einstein Probe captured the X-ray flash from a very elusive celestial pair. The discovery opens a new way to explore how massive stars interact and evolve, confirming the unique power of the mission ...
Astronomy
10 hours ago
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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 ...
Planetary Sciences
11 hours ago
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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.
Astronomy
11 hours ago
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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
8 hours ago
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Solar Orbiter ready for close encounter with Venus
The European Space Agency (ESA) is ready to guide the ESA/NASA Solar Orbiter spacecraft through its closest encounter with Venus so far.
Space Exploration
8 hours ago
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What would happen if a tiny black hole passed through your body?
In 1974, science fiction author Larry Niven wrote a murder mystery with an interesting premise: Could you kill a man with a tiny black hole? I won't spoil the story, though I'm willing to bet most people would argue the answer ...
Astronomy
9 hours ago
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Why we think Theia existed
The giant-impact hypothesis posits that billions of years ago a Mars-sized body named Theia collided with the early Earth.
Planetary Sciences
9 hours ago
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Liquid mirrors can only point straight up. could magnets solve this problem?
When it comes to telescope mirrors, larger is generally better. The larger your main mirror, the more light you can capture and the more faint and distant objects you can see. The problem is that large mirrors are difficult ...
Astronomy
9 hours ago
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Perseverance finds new kinds of rocks that could be the oldest ever found on Mars
Perseverance's drives over the last few weeks have doubled back several times. Why such an unconventional route? Team scientists have been delighted to find new kinds of rocks that could be the oldest ever found on Mars and ...
Planetary Sciences
9 hours ago
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Dramatically decreasing the time it takes to measure asteroid distances
We all know that asteroids are out there, that some of them come dangerously close to Earth, and that they've struck Earth before with catastrophic consequences. The recent discovery of asteroid 2024 YR4 reminds us of the ...
Astronomy
22 hours ago
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Eighteen new pulsars discovered with Arecibo data analysis
Astronomers from West Virginia University and elsewhere report the detection of 18 new pulsars using the Arecibo Observatory (AO) as part of the AO 327-MHz Drift Survey. The findings were detailed in a research paper published ...
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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 ...
Astrobiology
Feb 17, 2025
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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, ...
Astronomy
Feb 17, 2025
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'Remarkable' cosmic explosion discovered in decades-old X-ray data
The "needle in the haystack" discovery of a powerful explosion from a mysterious unknown object outside our galaxy has excited astronomers.
Astronomy
Feb 17, 2025
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Many stars could have sent us 'Oumuamua
When astronomers detected the first known interstellar object, 'Oumuamua, in 2017, it sparked a host of new studies trying to understand the origin and trajectory of the galactic sojourner.
Planetary Sciences
Feb 17, 2025
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Evolving intelligent life took billions of years—but it may not have been as unlikely as many scientists predicted
A popular model of evolution concludes that it was incredibly unlikely for humanity to evolve on Earth, and that extraterrestrial intelligence is vanishingly rare.
Astrobiology
Feb 17, 2025
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More news
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Overnight SpaceX launch to use booster for record 26th flight
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How NASA's Lunar Trailblazer will make a looping voyage to the moon
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First astronaut with a disability cleared for space station mission
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Jumping workouts could help astronauts on the moon and Mars
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Hydrogels could be ideal radiation protection for astronauts
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NASA's polar ice experiment paves way for future moon missions
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Bezos's Blue Origin rocket firm to cut 10% of workforce
Other news
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Experiments show wild fish can recognize individual divers
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Deep-sea organisms shape ocean floor at 7.5 km depth
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Timing in eBay negotiations affects deal outcomes, study reveals
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Curiosity rover captures colorful clouds drifting over Mars
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Interstellar visitors: Material from Alpha Centauri may already be here
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New X-ray experiment could solve major physics puzzles
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