For the first time in years, astronomers are seriously talking about adding a new member to the solar system’s planetary family. I’m not talking about reviving Pluto’s status, but about a potential ...

Astronomers on Mauna Kea found the first space object on which NASA’s Roman Space Telescope can test its imaging technology. A new “massive planet ” also was found, the W.M. Keck Observatory said in a ...

A newly discovered “super-Earth” planet could allow us to finally see alien life, researchers say. The world – named GJ 251 c and lying less than 20 light years away – is thought to be a “super Earth” ...

Add Yahoo as a preferred source to see more of our stories on Google. Interstellar object 3I/ATLAS imaged by the Hubble Space Telescope. Could similar objects be the seeds of new planets around young ...

Relative sizes of the newly discovered habitable-zone planets and Earth. Left to right: Kepler-69c, Kepler-62e, Kepler-62f and Earth (except for Earth, these are artists' renditions). Image credit: ...

A new study has proposed the existence of Planet Y, an alternative Planet Nine candidate that is smaller and closer to Earth than the hypothetical Planet X, which astronomers have been hunting for ...

LAS CRUCES, N.M. (KRQE) – Thanks to some old data and New Mexico researchers, we know of one more exoplanet in the Milky Way. A group of scientists at New Mexico State University and Northwestern ...

An infrared image shows a brown dwarf discovered by astronomers using the W.M. Keck Observatory and Subaru Telescope on Maunakea on Feb. 23, 2024. Data from both the observatory and telescope ...