#alienworlds

This Isn't Just Another Rocky World Orbiting a Red Dwarf. This One's Special Rocky planets are found in abundance around M-type stars (red dwarfs), so finding another one doesn't always generate headlines. But an international team of astronomers say that one recent M-dwarf rocky planet found by TESS is especially noteworthy. This one can serve as a benchmark for comparative studies of this type of exoplanet and their at-risk atmospheres.

2 days ago

This Isn't Just Another Rocky World Orbiting a Red Dwarf. This One's Special www.universetoday.com/articles/this-isnt-just-... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology

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NASA's tiny spacecraft sends first exoplanet images With the first images from the spacecraft now in hand, the team behind NASA's Star-Planet Activity Research CubeSat, or SPARCS, is ready to begin charting the energetic lives of the galaxy's most common stars to help answer one of humanity's most profound questions: Which distant worlds beyond our solar system might be habitable?

2 days ago

NASA's tiny spacecraft sends first exoplanet images phys.org/news/2026-03-nasa-tiny-s... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology

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"Ionic Liquids" Could Redefine the Habitable Zone “Follow the water” has been a guiding mantra of astrobiology, and even space exploration more generally for decades. If you want to find life, it makes sense to look for the universal solvent that almost all types of life on Earth use. But what if life doesn’t actually need water to live or even evolve? A recent paper, available in pre-print on arXiv by researchers at MIT, including Dr. Sara Seager, and the University of Cardiff, proposes an alternative to water as the basis for life - ionic liquids (ILs) and deep eutectic solvents (DES). These liquids could allow life to exist in environments we had once thought were far too hot, too cold, or too barren to support life, and could dramatically change our search for it throughout the cosmos.

3 days ago

"Ionic Liquids" Could Redefine the Habitable Zone www.universetoday.com/articles/ionic-liquids-c... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology

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3 days ago

New Study Says There's a Way to Make Dyson Bubbles and Stellar Engines Stable www.universetoday.com/articles/new-study-says-... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem […]

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4 days ago

AI Could Make Alien Contact More Likely for SETI's 'Project Hail Mary' www.universetoday.com/articles/ai-could-make-a... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology #AI […]

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Nearby red dwarf star hosts at least four planets—with one in the habitable zone In 2020, a study confirmed that two planets orbited the nearby red dwarf, GJ 887. Now, astronomers have confirmed the existence of two additional planets orbiting GJ 887 in a new study published in Astronomy and Astrophysics. The new study suggests that one of these newly confirmed planets is in the habitable zone.

5 days ago

Nearby red dwarf star hosts at least four planets, with one in the habitable zone phys.org/news/2026-03-nearby-red-... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology

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The coldest 'stars' in the galaxy might actually be alien megastructures Ever since physicist Freeman Dyson first proposed the concept in 1960, the "Dyson sphere" has been the holy grail of techno-signature hunters. A highly advanced civilization could build a "sphere" (or, in our more modern understanding, a "swarm" of smaller components) around their host star to harvest its entire energy output. We know, in theory at least, that such a swarm could exist—but what would it actually look like if we were able to observe one? A new paper, available on the arXiv pre-print server and soon to be published in Universe from Amirnezam Amiri of the University of Arkansas, digs into that question—and in the process discloses the types of stars that are the most likely to find them around.

1 week ago

The coldest 'stars' in the galaxy might actually be alien megastructures phys.org/news/2026-03-coldest-sta... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology

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Can we observe Earth-like exoplanets from our own planet? Finding Earth-like planets orbiting sun-like stars and identifying signs of life such as oxygen or water is a major goal in astronomy and a key interest for the public. Addressing this challenge speaks directly to one of humanity's most fundamental questions: Are we alone in the universe? However, these planets are about 10 billion times dimmer than their stars in visible light, making direct detection extremely challenging.

1 week ago

Can we observe Earth-like exoplanets from our own planet? phys.org/news/2026-03-earth-exopl... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology

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1 week ago

Missing technosignatures? Turbulent plasma may blur ultra-narrow signals before they leave their home star systems phys.org/news/2026-03-technosigna... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem […]

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Introducing the 'Interplanetary Habitable Zone' Anyone familiar with the search for alien life will have heard of the “Goldilocks Zone” around a star. This is defined as the orbital band where the temperature is just right for liquid water to pool on a rocky planet’s surface - a good approximation for what we thought of as the early conditions for life on Earth. But what happens if that life doesn’t stay on an Earth analog? If they, like we, start to move towards their neighboring planets, the idea of a habitable zone becomes much more complicated. A new paper from Dr. Caleb Scharf of the NASA Ames Research Center, and one of the agency’s premier astrobiologists, tries to account for this possibility by introducing the framework of an Interplanetary Habitable Zone (IHZ).

1 week ago

Introducing the 'Interplanetary Habitable Zone' www.universetoday.com/articles/introducing-the... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology

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1 week ago

Red Dwarf Stars Might Starve Alien Plants of the "Quality" Light They Need to Breathe www.universetoday.com/articles/red-dwarf-stars... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science […]

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Adolescence Is Tumultuous, Even For Exoplanets Planetary systems such as our solar system take hundreds of millions of years to evolve. But we see most exoplanet systems either very early in their development, or long after the systems have settled down. There's an information gap about what happens in the middle, and a rarely observed

1 week ago

Adolescence Is Tumultuous, Even For Exoplanets www.universetoday.com/articles/adolescence-is-... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology

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1 week ago

Alien Worlds 3D #1 Pacific Comics 1984 w/ 3D Glasses Dave Stevens Art B Seller: stipefan4 (99.9% positive feedback) Location: US Condition: Good Price: 7.42 GBP Shipping cost: 13.42 GBP Buy It Now

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US Comic Sales (uscs.bs247.net)

@uscomicsales.bsky.social

1 week ago

Alien Worlds 3D #1 Pacific Comics 1984 w/ 3D Glasses Dave Stevens Art B Seller: stipefan4 (99.9% positive feedback) Location: US Condition: Good Price: 9.95 USD Shipping cost: 5.99 USD Buy It Now

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The Coldest "Stars" in the Galaxy Might Actually Be Alien Megastructures Ever since physicist Freeman Dyson first proposed the concept in 1960, the “Dyson sphere” has been the holy grail of techno-signature hunters. A highly advanced civilization could build a “sphere” (or, in our more modern understanding, a “swarm” of smaller components) around their host star to harvest its entire energy output. We know, in theory at least, that such a swarm could exist - but what would it actually look like if we were able to observe one? A new paper available in pre-print on arXiv, and soon to be published in Universe from Amirnezam Amiri of the University of Arkansas digs into that question - and in the process discloses the types of stars that are the most likely to find them around.

1 week ago

The Coldest "Stars" in the Galaxy Might Actually Be Alien Megastructures www.universetoday.com/articles/the-coldest-sta... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology

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What is an exoplanet? An astrophysicist explains why they are vital for finding alien life Scientists might have just found Earth's icy, distant cousin a few hundred million light-years away. HD 137010 b is one of thousands of exoplanets, or planets that orbit other stars, and is potentially the first Earth-like one that also orbits a sun-like star. Initially observed in 2017 with data from the National Aeronautics and Space Administration (NASA) and its Kepler Space Telescope, further details about HD 137010b came out this year.

2 weeks ago

What is an exoplanet? An astrophysicist explains why they are vital for finding alien life phys.org/news/2026-02-exoplanet-a... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology

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@themainju.bsky.social

2 weeks ago

Never ending running

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The Margret

@themargret.bsky.social

2 weeks ago

They thought they had reached the edge of the ocean.
They were wrong.

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Exomoons could reveal themselves through lunar eclipses Our solar system hosts almost 900 known moons; more than 400 orbit the eight planets while the remaining orbit dwarf planets, asteroids, and Trans-Neptunian Objects (TNOs). Of these, only a handful are targets for astrobiology and could potentially support life as we know it, including Jupiter's moons Europa and Ganymede, and Saturn's moons Titan and Enceladus. While these moons orbit two of the largest planets in our solar system, what about moons orbiting giant exoplanets, also called exomoons? But, to find life on exomoons, scientists need to find exomoons to begin with.

2 weeks ago

Exomoons could reveal themselves through lunar eclipses phys.org/news/2026-02-exomoons-re... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology

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Are There Aliens Broadcasting from Hycean World K2-18b? Astronomers Just Listened In If you’ve been following exoplanet research over the last couple of years, you’ve definitely heard of K2-18b. Located 124 light years away in the constellation Leo, it’s attracted a lot of attention as it sits squarely in its red dwarf host star’s habitable zone, and measurements of the James Webb Space Telescope show its atmosphere is rich in carbon dioxide and methane. It’s one of the prime candidates for a “Hycean” world - one where a thick hydrogen-rich atmosphere covers a global liquid water ocean. It is such an intriguing target for Search for Extraterrestrial Intelligence (SETI) researchers that they turned two of the most powerful radio telescopes in the world to watch K2-18b’s system. A recent paper, available in pre-print on arXiv, shows that there is likely no artificial narrow-band radio signals that are equivalent to our technology level coming from the planet, despite millions of potential hits.

2 weeks ago

Are There Aliens Broadcasting from Hycean World K2-18b? www.universetoday.com/articles/are-there-alien... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology

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Best space games: 15 out-of-this-world adventures for space fans Explore the cosmos and battle aliens with the best space games, from No Man's Sky to Mass Effect.

2 weeks ago

Best space games: 15 out-of-this-world adventures for space fans https://www.space.com/best-space-games 🚀 #SciFi #ScienceFiction #AlienWorlds #AlienLife #Extraterrestrials #Space #SolarSystem #Gaming

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3 weeks ago

What cold-water geysers on Earth reveal about the habitability of ocean worlds phys.org/news/2026-02-cold-geyser... 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology

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3 weeks ago

If alien signals have already reached Earth, why haven't we seen them? https://phys.org/news/2026-02-alien-earth-havent.html 🪐 #Exoplanet #Exoplanets #AlienWorlds #AlienLife #Extraterrestrials #Space #Science #SolarSystem #Astrobiology

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1 month ago

Unique 'inside out' planetary system reveals rocky outer world phys.org/news/2026-02-unique-plan... 🪐 #Exoplanet #Exoplanets #AlienWorlds #Space #Science #SolarSystem

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Unseen planet or brown dwarf may have hidden 'rare' fading star One of the longest stellar dimming events ever observed was likely caused by the gigantic saucer-like rings of either an unseen brown dwarf or "super-Jupiter" blocking its host star's light, astronomers say. For decades, the star—which sits 3,200 light-years from Earth and is about twice as big as our sun—had been observed as stable, but at the end of 2024 it faded dramatically.

1 month ago

Unseen planet or brown dwarf may have hidden 'rare' fading star phys.org/news/2026-02-unseen-plan... 🪐 #Exoplanet #Exoplanets #AlienWorlds #Space #Science #SolarSystem

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