Expansion of the universe had already been anticipated by theorists. In the early 1920s, Alexander Friedmann and Georges ...

A star’s surface temperature can be used to determine the star’s luminosity and chemical composition. At best, a star’s exact ...

Here are the 5 latest cosmic event images captured on August and September 2024 by NASA Hubble Space Telescope. Galaxy LEDA ...

This May, engineers working on NASA's Europa Clipper discovered a problem with the spacecraft and had to scramble to get it ...

Here are the full injury designations ahead of the Week 3 matchup between the Indianapolis Colts and Chicago Bears.

A planet swings in front of its star, dimming the starlight we see. Events like these, called transits, provide us with ...

The magnificent galaxy featured in this NASA/ESA Hubble Space Telescope image is NGC 1559. It is a barred spiral galaxy ...

MIT scientists say that dark energy could be the missing factor that explains some of the most perplexing phenomena in the ...

Imagery of Saturn captured by the James Webb Space Telescope is superimposed over an image captured by Hubble. "Yellows ...

Eight of the most fascinating discoveries made by the James Webb Space Telescope so far. In this slot machine episode we play ...

The most familiar type of telescope is the refractor. It uses two lenses, one to collect the light and form an image, called ...