A team of engineers has been at work for the past three years to develop a space cleanup satellite. The intent is to eliminate threatening, human-made orbital debris.
Exploring interstellar space would require a paradigm change in our way of thinking.
Ground control teams hope to get confirmation early Monday that an experimental spacecraft successfully deployed its solar sail, a key milestone to prepare for an operational mission next year.
The NASA payload aims to test how the space environment affects certain materials.
Russia on Saturday announced initial plans to build a new orbital space station together with NASA to replace the International Space Station (ISS), which is set to operate until 2024.
NASA's Dawn probe arrived at Ceres, becoming the first spacecraft ever to orbit a dwarf planet.
It's not a spare moon of ours, exactly, but Earth does have a sort of gravitational buddy out there, in the mellifluously named 3753 Cruithne. It orbits the sun, just like us, and is locked with Earth in what scientists call orbital resonance.
For only the second time, an exoplanet living with an expansive family of four stars has been revealed.
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