Astronomers used the James Webb Space Telescope to directly capture images of the planets in the star system HR 8799, which ...

These rather small planets are a stone's throw from Earth in galactic terms, but were too small for previous instruments to ...

11, 2025 — A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in our galaxy.

Two of Earth's largest mass extinction events were likely triggered by the fallout from two supernovae in nearby space. This ...

Astronomers have discovered four planets that are just a fraction of the mass of Earth orbiting Barnard’s Star, which is 6 ...

Astronomer Cecilia Payne-Gaposchkin spent nearly a year in “utter bewilderment” after arriving at the Harvard College ...

Or does the star merely look reddish, since its light has had to travel through a cloud of cosmic dust to reach our telescope ... curve of dust in the Milky Way. This map was made possible by Zhang ...

A supercluster is usually composed of hundreds or even thousands of clusters of galaxies, and these clusters are ...

Five 'mass extinctions' have decimated our planet since it was formed - now scientists claim the answers to two could be written in the stars.

Over the past decade, scientists have detected a puzzling phenomenon: radio pulses coming from within our Milky Way galaxy that would ... from this binary star system are just the beginning ...

A torchship is a spacecraft with more than 300 km/s total delta V and an acceleration greater than 0.01 g. There is an online site for determining solar system travel times with advanced propulsion.