Like other solar systems, our star and planets formed at the same time as debris collided into itself within a cloud of dust and gas, which is called a nebula. As a result of absorbing various gases, ...

NASA reports that each meteor can travel at speeds reaching 148,000 miles per hour, leaving glowing trails that sometimes last several minutes.

If you were up before dawn, then you were lucky enough to see a breathtaking celestial sight. Many early-morning stargazers captured striking images of an eye-catching conjunction of the moon with ...

Stars shine in these heavenly images from the Smithsonian Magazine Photo Contest Depictions of catlike animals are visible on stones under a rotating, starry sky. Smithsonian Photo Contest Galleries ...

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