Computer simulations confirm that ‘Oumuamua – an object from another star system that sped near our sun in 2017 – likely formed via a close encounter with its star. ‘Oumuamua may have originated in a debris disk, they said, or even a shattered super-Earth. Source: https://earthsky.org/space/new-formation-theory-interstellar-object-oumuamua…
Tag: habitable zones
Will we soon see potentially habitable exoplanets more clearly?
Because stars are so much brighter than their planets, we’ve barely begun to glimpse distant exoplanets, or planets orbiting distant stars. Now a new technology promises to provide better imaging of these potentially habitable exoworlds. Source: https://earthsky.org/space/exoplanets-direct-imaging-potential-habitability…
Earth’s cousins: Upcoming missions to look for ‘biosignatures’ in exoplanet atmospheres
Scientists have discovered thousands of exoplanets, including dozens of terrestrial—or rocky—worlds in the habitable zones around their parent stars. A promising approach to search for signs of life on these worlds is to probe exoplanet atmospheres for “biosignatures”—quirks in chemical composition that are telltale signs of life. For example, thanks to photosynthesis, our atmosphere is nearly 21% oxygen, a much higher…
Goldilocks stars best for alien life?
A new research study suggests that K-type dwarf stars (smaller and cooler than our sun) are the best place to search for alien life. These stars are not too hot, not too cool, and not too violent for life to evolve. Source: https://earthsky.org/space/goldilocks-stars-g-k-dwarfs-best-for-alien-life…
Europe’s CHEOPS mission will shed light on strange new worlds
The European Space Agency has successfully launched its CHEOPS space telescope, the 1st of 3 planned missions to study distant exoplanets in greater detail than ever before. Source: https://earthsky.org/space/cheops-space-telescope-launch-dec-2019…
Researchers discover exoplanets can be made less habitable by stars’ flares
The discovery of terrestrial exoplanets, planets that orbit stars outside the solar system, has been one of the most significant developments in modern astronomy. Several exoplanets lie in the “habitable zones” of stars, where planets are thought to be able to maintain liquid water on their surface, and have the potential to host life. However, an exoplanet that is too close…
Exoplanet-tilt study boosts hope of complex life elsewhere
Most sunlike stars have at least one other star as a companion. Prior research has shown planets can exist in these systems, but how likely are these planets to evolve complex life? A new study sheds some light, by looking at how planets spin in double star systems. Source: https://earthsky.org/space/exoplanets-axial-tilt-evolution-of-complex-life-earth…
How small is the smallest habitable exoplanet?
Where can we expect to find life beyond Earth? A new study has redefined the lower limit in mass for habitable exoworlds. It suggests that low-mass waterworlds might exist and might be a place to look. Source: https://earthsky.org/space/small-rocky-exoplanets-can-still-be-habitable…
Life in Space: Searching for Aliens and Living on a Nearby Super-Earth
Recently, NASA discovered the first nearby super-Earth that researchers believe contain “habitable zones.” With this new discovery alongside the buzz of Elon Musk’s vision for a colony on Mars and Jeff Bezo’s floating space pod colonies, are we close to living in space? Or perhaps we’ll find alien life before that happens? Astronomers are now […]
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