Earth" that is located about 154 light-years away and is nearly twice as big and four times as massive as our planet.

Science News: Asteroid 2024 YR4, though not an Earth threat, now poses a collision risk to the Moon. Scientists estimate a 4.3% chance of impact, potentially ejecti ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has discovered a new ...

Earth reaches aphelion every July, and this year it occurs on Thursday at 3:55 p.m. Eastern time. That Earth has an aphelion is a result of its orbit being elliptical, rather than circular.

A new gas giant world discovered by citizen scientists using data from NASA's exoplanet-hunting spacecraft TESS is cool, ...

NASA's exoplanet-hunting spacecraft, aided by citizen scientists, has discovered a new long-period gas giant exoplanet, ...

O penAI's large language model (LLM) ChatGPT is surprisingly good at piloting spacecraft, according to a team that trained it ...

Asteroid 2024 YR4, though not an Earth threat, now poses a collision risk to the Moon. Scientists estimate a 4.3% chance of impact, potentially ejecting 100 million kilograms of lunar debris into ...

They have elliptical orbits and have axial tilts as well, so they, too, get analemmas, but they’re shaped differently. Mars, for example, is tilted by about 25 degrees, similar to Earth.

The 18th edition of Novaspace’s Earth Observation Satellite Systems report, finds 5,770 EO satellites set to launch by 2034 ...