White dwarfs offer a unique opportunity to search nearby stellar systems for signs of life, but the habitable zone around these stars is still poorly understood. Since white dwarfs are […]
New research led by Lia Siegelman, a physical oceanographer at UC San Diego’s Scripps Institution of Oceanography, shows that the roiling storms at the planet Jupiter’s polar regions are powered […]
![Pyrite sulfur δ34S values as a function of the natural logarithm of pore water sulfate concentration (r2 = 0.52). Colors correspond to TOC concentration. The solid black line is the line of best fit, with the equation y = −8.4ln([SO4]) − 3.4. The two dashed black lines are parallel to the line of best fit and run 20 ‰ above it and 16 ‰ below it. -- Johns Hopkins University](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/06/An-Unlikely-Hero-In.png?resize=1200%2C720&ssl=1)
One of Earth’s most consequential bursts of biodiversity—a 30-million-year period of explosive evolutionary changes spawning innumerable new species—may have the most modest of creatures to thank for the vital stage […]
(From 2019) The National Aeronautics and Space Administration (NASA) will invest in a major new research program headquartered at the Woods Hole Oceanographic Institution (WHOI) that pulls together some of […]
New Curtin-led research has found evidence that fresh water on Earth, which is essential for life, appeared about four billion years ago – five hundred million years earlier than previously […]
![The [Fe/H] versus C/O distribution for this work sample, as well as other M dwarfs studied by Souto et al. (2017), Souto et al. (2018), Souto et al. (2020). The orange circles represent the results for the four JWST targets studied here; Results for M dwarfs from our previous studies (all based on the same methodology as here) are also shown: orange triangles are M dwarfs with exoplanets detected, while the gray squares are M dwarfs without exoplanets detected so far. We also present results for FGK dwarfs from Nissen (2013) (green triangles; all with detected exoplanets), Teske et al. (2014) with (light blue diamonds) detected exoplanets, and Delgado Mena et al. (2021) with (pink circles), and without detected exoplanets (yellow cross). Additionally, four curves represent the linear regressions of the [Fe/H] vs. C/O distribution for M dwarfs with planet detected (solid orange line), M dwarfs without planet detected (solid gray line), FGK dwarfs with detected planets (dashed orange line), and FGK dwarfs without detected planets (dashed gray line). -- astro-ph.SR](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/06/Stellar-Characterization-and.png?resize=1200%2C719&ssl=1)
Exoplanets hosting M dwarfs are the best targets to characterize Earth-like or super-Earth planetary atmospheres with the James Webb Space Telescope (JWST). We determine detailed stellar parameters (Teff, logg, and […]
A study involving the University of Cambridge has used virtual recreations of the earliest animal ecosystems, known as marine animal forests, to demonstrate the part they played in the evolution […]
NASA Astrobiology joins in the 2024 Engineers Week (Feb. 18-24) celebration to recognize the contributions of NASA’s engineers, technicians, and technologists to discovery and innovation.
The crew of Schmidt Ocean Institute’s research vessel Falkor (too) discovered four underwater mountains — the tallest of which is over 1.5 miles high — on a January transit from […]
NASA announced Friday it selected three industry proposals to help develop technologies for future large space telescopes and plan for the agency’s Habitable Worlds Observatory mission concept, which could be […]
