Astronomie nieuws - NewsLocker

Temperamental Stars are Messing With Our Exoplanet Efforts

11-02-2025 23:49 via universetoday.com

We have the transit method to thank for the large majority of the exoplanets we’ve discovered. When an exoplanet transits its star, the dip in starlight tells astronomers that a planet is present. Analyzing the light can tell them about the planet’s size and atmospheric properties. However, a star’s surface isn’t always uniformly heated. There can be hotter, brighter spots and colder, dimmer spots that change over time.New research says these temperamental stars are disto

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A New Study Reveals How Dark Matter Dominated the Early Universe

11-02-2025 21:39 via universetoday.com

During the 1970s, while probing distant galaxies to determine their mass, size, and other characteristics, astronomers noticed something interesting. When examining the rate at which these galaxies rotated (their rotational curves), they found that the outer parts were rotating faster than expected. In short, their behavior suggested that they were far more massive than they appeared to be. This led to the theory that in addition to stars, gas, and dust, galaxies were surrounded by a “halo

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Mogelijk is er weer een multi-messenger gebeurtenis waargenomen met zwaartekrachtgolf S250206dm

11-02-2025 21:01 via astroblogs.nl

Mogelijk hebben wetenschappers op donderdag 6 februari jongstleden weer een ‘multi-messenger gebeurtenis’ waargenomen, een uitbarsting aan de hemel waarvan zowel zwaartekrachtgolven, straling als deeltjes zijn waargenomen. Mocht dat inderdaad zo zijn dan is het in de geschiedenis de tweede keer dat zoiets is waargenomen, na GW170817, welke plaatsvond op 17 augustus 2017. Die dag detecteerde […]

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A Jumping Robot Could Leap Over Enceladus’ Geysers

11-02-2025 20:49 via universetoday.com

Locomotion makes things move, and certain forms of locomotion make them move better than others. Those more effective types of locomotion change depending on the environment, which is even more true for space exploration. Methods that might work well on Earth or even other planets, such as helicopters, might be utterly useless on others. But, specialized forms of locomotion abound, and the NASA Institute of Advanced Concepts (NIAC) phase I grants for this year include a closer look at one such s

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JWST Finds the Smallest Asteroids Ever Seen in the Main Belt

11-02-2025 20:25 via universetoday.com

The JWST was never intended to find asteroids. It was built to probe some of our deepest, most demanding questions about the cosmos: how the first stars formed, how galaxies have evolved, how planets like ours take shape, and even how life originated. However, it’s first and foremost a powerful infrared telescope and its unrivalled infrared prowess is helping it contribute to another important goal: defending Earth from dangerous asteroids.Humanity doesn’t want to share the dinosaurs

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Material from Alpha Centauri is Already Here

11-02-2025 18:52 via universetoday.com

The appearance of the Interstellar Objects (ISOs) Oumuamua and Comet Borisov in 2017 and 2019, respectively, created a surge of interest. What were they? Where did they come from? Unfortunately, they didn’t stick around and wouldn’t cooperate with our efforts to study them in detail. Regardless, they showed us something: Milky Way objects are moving around the galaxy.We don’t know where either ISO came from, but there must be more—far more. How many other objects from our

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NASA CubeSat Discovers New Radiation Belts After Intense Solar Storm

11-02-2025 18:25 via universetoday.com

In a groundbreaking discovery, a NASA CubeSat has detected new radiation belts around Earth following a powerful solar storm in May 2024. This discovery reshapes our understanding of how solar activity interacts with Earth’s magnetic field, creating new zones of trapped particles. CubeSat, which was designed to study space weather, has captured data that could have major benefits for satellite operations, astronaut safety, and future space missions. As solar activity intensifies in the com

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Alien Oceans May Conceal Signs of Life from Spacecraft

11-02-2025 15:58 via universetoday.com

As the search for extraterrestrial life continues, scientists have identified the hidden oceans beneath icy moons as target locations for discovery. However, new research from the University of Reading suggests these alien seas may be better at masking their secrets than previously believed. Thick ice layers and complex chemical processes could make detecting signs of life from spacecraft far more challenging. The discovery presents significant obstacles for future missions to moons like Europa

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Astronomen ontdekken mogelijk razendsnel exoplanetenstelsel - Astronomie.nl

11-02-2025 09:49 via news.google.com

Astronomen ontdekken mogelijk razendsnel exoplanetenstelsel Astronomie.nl

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Astronomen ontdekken mogelijk razendsnel exoplanetenstelsel

11-02-2025 09:49 via astronieuws.nl

Astronomen hebben een schamele ster ontdekt die, met een planeet op sleeptouw, door het centrum van ons Melkwegstelsel raast. De ster, en dus ook zijn planeet, lijkt een snelheid van minstens 540 kilometer per seconde te hebben en zou daarmee bijna tweemaal zo snel bewegen als ons zonnestelsel. Als dit kan worden bevestigd, dan vormt het tweetal het snelst bewegende exoplanetenstelsel (The Astronomical Journal, 10 februari). De planeet die om de ster cirkelt is een zogeheten super-Neptunus:

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NASA Gets a Firm Grip on the Future of Space Exploration

11-02-2025 00:30 via universetoday.com

As part of their ongoing mission to push the boundaries of space exploration, NASA’s cutting-edge robotic hand is bringing us one step closer to a future where machines can grab objects just like humans. The machine which has been designed for dexterity and precision, isn’t just about gripping objects—it’s about revolutionising how astronauts and robots work together in space. With applications ranging from spacecraft maintenance to cleaning up space junk, this high-tech

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