A proposed mission seeks to retrieve Vanguard-1 and display it as an ancient relic of the space age.

In the intense early days of the space race, a small, unusual satellite was launched into space sixty-seven years ago.

Launched in 1958 and silent since the Johnson era, Vanguard 1 is the oldest human-made satellite still orbiting Earth — and a ...

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Russia is also losing its role as a pivotal player in space cooperation. Since Moscow’s ties to the West are effectively ...

The micromoon, occurring when the full moon reaches its farthest orbital point, appears subtly smaller than normal.

The discovery of natural satellites on Saturn assists researchers in understanding the dynamics of orbits, resonances, and the stability of planetary systems in general ...

The Space Force launched the program to provide persistent tracking of modern asymmetric threats such as hypersonic glide ...

Looking for a really big story, I naturally headed for "Galaxies in Collision." Bradley Whitmore of the Space Telescope Science Institute in Baltimore brought us up to speed. We've known for a ...

However, it won't be long before this weekend's record is going to be broken. Almost every year in the next 12 years will ...