On July 25, 2015, the near-Earth asteroid 1999 JD6 -- a 'contact binary -- made its closest pass of Earth in at least over a century.
As Comet 67P/Churyumov-Gerasimenko approaches perihelion, the sun is heating up its nucleus and the solar wind is causing its tail to evolve. And the Rosetta mission has a ringside seat.
NASA’s New Horizons spacecraft has given scientists their first hint about why Pluto has a reddish hue.
What tiny satellites could take a ride over to Europa? Here are five feasibility studies being considered to hitchhike on a NASA mission.
Science is an intellectual adventure. Sometimes it is also a physical adventure.
New Horizons survived 9.5 years in space before taking pictures of Pluto. How do spacecraft engineers keep their machines going for so long?
As New Horizons speeds past Pluto, it's natural to wonder what we can look forward to now. Luckily, there's a fleet of spacecraft prepared to soar all over the solar system in the coming years.
Little Pluto, smaller than Earth’s moon, has a least one giant mountain range, with water ice the only available building material.
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