The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it looks like. Now, new simulations may have given them a first glimpse.

NASA's Advanced Composite Solar Sail System (ACS3) will be visible from the ground. Find out when you can see it on the NASA app on a mobile device. Credit: NASA/JPL-Caltech ...

John Casani, who has died aged 92, was an American spaceflight engineer who led the teams that pioneered Nasa’s explorations ...

Along with launching two NASA probes, the SpaceX Falcon 9 rocket carried five other satellites into orbit with goals ranging ...

International astronomers have for the first time witnessed the birth of a planetary system beyond Earth's sun that could one ...

NASA's Pleiades supercomputer has provided fresh insights into the Oort cloud – a vast, theoretical spherical shell of icy objects that surrounds our solar system. For a long time, the Oort ...

The Colorado Scale Model Solar System depicts the Sun, the planets, and the distances between them all on the same scale of 1 to 10 billion. ... NASA's MESSENGER Mission Launch date: August 3, 2004 ...

NASA’s Cassini mission carried an instrument, designed to study particles trapped in Saturn’s magnetic field, that also made observations of particles bouncing back towards the inner solar system.

HAMPTON, Va. (WAVY) — Later this week, NASA will be launching the Europa Clipper spacecraft on a mission that’s going far in our solar system to study one of Jupiter’s moons to learn more ...

As Pluto is finally added to the University of Arizona's scale model solar system, ... NASA’s New Horizons spacecraft captured this high-resolution enhanced color view of Pluto on July 14, 2015.