Where does the solar system end and interstellar space begin? There are no 'Now Leaving...' signs so it's somewhat subjective. If you think the argument over Pluto was confusing, you'll be intrigued…

The Magnetometer instrument that will fly on NOAA's GOES-R satellite when it is launched in early 2016 has completed the development and testing phase and is ready to be integrated with the…

ESA’s spaceplane is getting ready to showcase reentry technologies. Instead of heading north into a polar orbit, as on previous flights, Vega will head eastwards to release the spaceplane into a…

A new type of telescope made by stitching together telephoto lenses recently discovered seven celestial surprises while probing a nearby spiral galaxy - previously undetected dwarf galaxies.…

Researchers using the Arecibo radio telescope in Puerto Rico discovered a split-second burst of radio waves, the first time that a so-called "fast radio burst" has been detected using an instrument…

ESA’s Rosetta spacecraft is on the last leg of its epic voyage to comet 67P/Churyumov–Gerasimenko, the first rendezvous with a comet. Every kid has asked 'Are we there yet?' in the car.  It's…

The Orbiting Carbon Observatory (OCO) was a NASA Earth System Science Pathfinder Project (ESSP) mission designed to make precise, time-dependent global measurements of atmospheric carbon dioxide (CO2…

As you read this, NASA's New Horizons is heading to Pluto. After the marathon probe zooms past Pluto in July of next year, it will travel across the Kuiper Belt, that vast rim of primitive ice…

The Digital Mapping System (DMS) instrument attached to NASA’s P-3 Orion airplane for the Operation IceBridge campaign has captured an interesting image during its latest annual Operation IceBridge…

 A computer simulation called "Illustris" has created the first realistic virtual universe - it can recreate 13 billion years of cosmic evolution in a cube 350 million light-years on a side with…