Scientists studying white dwarf stars have found that some contain traces of rocky debris very similar in composition to rocks found on Earth. The finding suggests that worlds similar to Earth might be common in our Milky Way galaxy. Source: https://earthsky.org/space/earth-not-unique-rocky-debris-white-dwarf-stars…
Tag: dwarf star
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…
Tycho supernova
New image of the Tycho supernova remnant from the Chandra X-ray Observatory. Source: https://earthsky.org/todays-image/tycho-supernova-image…
‘Impossible’ exoplanet and an alternate planet-formation theory
The discovery of exoplanet GJ 3512b – a planet “too big for its star” – adds fuel to the competition between 2 theoretical models of how planets form. It suggests many more Jupiter-like planets are waiting to be found, orbiting nearby sunlike stars. Source: https://earthsky.org/space/theories-planet-formation-gj-3512b-favors-disk-instability…
This giant exoplanet shouldn’t exist, but it does
As the number of newly discovered exoplanets – planets orbiting distant suns – continues to rise, so do unexpected surprises. Scientists say that giant exoplanet GJ 3512b shouldn’t even exist around its tiny star, but it does. Source: https://earthsky.org/space/giant-exoplanet-gj-3512b-shouldnt-exist…