The Earth 4 billion years ago was a chaotic, irradiated, hot mess, not unlike what is happening on some of the nearest exoplanets. Yet in spite of this, life somehow gained a toehold and then expanded, according to the study. The researchers modeled the surface ultraviolet environments of t...
Four Earth-sized planets orbit our nearest sun-like star, Tau Ceti, according to a new study from an international team of astronomers. With masses as low as 1.7 the mass of Earth, theexoplanetsare the smallest ever discovered around a nearby sun-like star, and two orbit within the star’...
(Jupiter's mass is 318 times Earth's.) Many of them, surprisingly, have high orbital eccentricity, and this is also bad news for stable orbits for terrestrial planets. I've noted stars with known exoplanets, but at this point it's not really possible to detect terrestrial planets in ...
“Many exoplanets have been found and many more will be found,” says Anglada-Escudé, “but searching for the closest potential Earth-analogue and succeeding has been the experience of a lifetime for all of us.” Rising to the challenge, Guillem Anglada-Escudé states, “The search for life...
"Hubble remains a key player in our characterisation of exoplanets", added Professor Laura Kreidberg of the Max Planck Institute for Astronomy in Heidelberg, Germany (who was not part of this study). "There are precious few terrestrial planets that are close enough for us to learn about ...
It’s also worth pondering how our Sun might appear to any inhabitants of these neighboring systems. With its flares and rich diversity of planets, it would likely be an enticing object for any extraterrestrial astronomers — especially those based around Wolf 359, from which Earth appears to tr...
However, the bad news is that, although there is one remarkable Earth-size planet around Proxima, astronomers have till now failed to find exoplanets around Alpha Cen A and B. Planet-hunting around these stars has proved more difficult recently due to the orbit of the pair, which has drawn...
A JWST transmission spectrum of the nearby Earth-sized exoplanet LHS 475 b Article31 August 2023 Highlights of exoplanetary science from Spitzer Article14 May 2020 Introduction As the search for terrestrial exoplanets advances, and the technology that will enable their characterization matures, it beco...
Terrestrial exoplanets orbiting within or near their host stars' habitable zone are potentially apt for life. It has been proposed that time-series measurements of reflected starlight from such planets will reveal their rotational period, main surface features and some atmospheric information. From ...
"But at the moment this conviction has nothing to do with science; it is only my personal point of view." Related: 10 Exoplanets That Could Host Alien Life More work needed Proxima c remains a candidate for now, Damasso and Del Sordo emphasized; confirming its existence will require ...