A protective atmosphere, a friendly Sun, and lots of liquid water — Earth is a special place. Using the unprecedented capabilities of the NASA/ESA/CSA...
The TRAPPIST-1 system is a compact system of at least seven exoplanets with sizes similar to Earth. Penn State and SETI Institute astronomers spent 28...
TRAPPIST-1, an ultracool dwarf star located 38.8 light-years away in the constellation of Aquarius, hosts seven planets. The period ratios of neighboring...
The five artificial greenhouse gases identified by University of California, Riverside astrobiologist Edward Schwieterman and his colleagues would be detectable...
TRAPPIST-1 is a nearby system of seven Earth-sized, temperate, rocky exoplanets transiting a Jupiter-sized ultracool red dwarf, ideally suited for in-depth...
Seven rocky planets orbit the nearby dwarf star TRAPPIST-1, providing a unique opportunity to search for atmospheres on small planets outside the Solar...
The dayside of TRAPPIST-1b, the innermost planet in the seven-planet system TRAPPIST-1, has a temperature of about 227 degrees Celsius (441 degrees Fahrenheit),...
Nitrous oxide (also known as laughing gas) — a product of microbial nitrogen metabolism — is a compelling exoplanet biosignature gas with distinctive...
A team of astronomers from Cornell University and the American Museum of Natural History has identified 1,715 stars within 100 parsecs (326 light-years)...
The seven rocky exoplanets orbiting TRAPPIST-1, an ultracool dwarf star located 38.8 light-years away in the constellation Aquarius, are about 8% less...
Other stars could have as many as seven Earth-like planets in the absence of farther out giant planets, according to a new study led by the University...
A new study, published in the Astrophysical Journal, suggests that if a 1- to 2-megawatt (MW) laser were focused through a 30- to 45-m telescope and aimed...
There could be a flaw in the search for atmospheric oxygen as a signature of life around most of our nearby exoplanets. A team from the University of Washington...
Astronomers using the NASA/ESA Hubble Space Telescope have conducted the first spectroscopic survey of exoplanets within the habitable zone around TRAPPIST-1....
A new study has found that planets orbiting TRAPPIST-1, an ultracool dwarf star 38.8 light-years away in the constellation Aquarius, are mostly made of...
In a research paper to appear in the Astronomical Journal (arXiv.org preprint), astronomers from MIT, the Geneva Observatory and elsewhere report that...
According to two separate teams of astrophysicists from the Harvard-Smithsonian Center for Astrophysics (CfA) and the Lowell Center for Space Science and...
Using numerical simulations to identify planets stable for millions of years, a team of researchers concluded that six of the seven roughly Earth-sized...
Astronomers have used data gathered by K2, the second mission of NASA’s Kepler Space Telescope, to confirm details of TRAPPIST-1h, the outermost of seven...
