Earth is closer to the sun at some times of year than at others, with the time of closest approach shifting over a period of 22,000 years. This affects Earth's climate, including ice ages, but a team ...

Research evaluates the likelihood of debris from interstellar object 3I/ATLAS reaching Earth, analyzing gas, dust and larger ...

Astronomer Dan Joyce tells us, “Nowadays, it’s rather simple: Just bounce radar off it (the sun).” The original determination by researchers in the late 1700s was a value of 87.5 million miles. Joyce ...

A recently discovered, sizable asteroid may come within striking distance of Earth in less than eight years. But although the rock is potentially even larger than the one believed responsible for the ...

Today is one astronomers, stargazers and alien conspiracy theorists have been waiting for: interstellar comet 3I/ATLAS is as ...

New images of interstellar object 3I/ATLAS show a sunward anti-tail extending over 500,000 kilometers, surpassing the ...