There's a new interstellar comet in the neighborhood! Known as 3I/ATLAS, this comet poses no threat to Earth – but it does ...

A new initial orbit determination (IOD) method using single-site very short arc radar observations is proposed. The method uses slant range, azimuth, and elevation angles to determine the position ...

The object was first noticed by NASA's Asteroid Terrestrial-impact Last Alert System (ATLAS), with further observations ...

Astronomy news always seems to break over coffee, on laptop startup. That was the case on Wednesday morning, when word of a ...

How many Earth-like exoplanets orbit M dwarf stars (Red dwarf stars), which are smaller and cooler than our Sun? This is what ...

Finally, the Earth moves a little bit beyond one complete revolution, so the stick again points towards the sun for a second ...

The Exploration Company lost contact with its Mission Possible vehicle a few minutes before touchdown in the ocean.

A European company that seeks to develop orbital spacecraft for cargo, and eventually humans, took a step forward this week ...

Gravitational assists are an emblematic example of why space travel is hard —it is exactly rocket science, after all. Gravity ...

NASA has quietly taken steps to prepare for a death in space. We need to ask how nations will deal with this inevitability now, as more people start traveling off the planet ...

Wide binary stars with separation greater than about 2000 astronomical units are interesting natural laboratories that allow a direct probe of gravity at low acceleration weaker than about 1 ...

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