Articles

ESA Mars Express Team

Hubble has taken some great new images of our 'friend,' Comet Siding Spring, due to pass by Mars at less than 136,000 km on October 19 – less than half the distance between Earth and our moon.

Emily Lakdawalla

Some arm faults caused delays on Curiosity's approach to Kimberley, but the rover is now parked at its north edge, examining the

Achim Vollhardt

ICE has been on a journey for over 30 years around our sun. While the owner has decided not to bring the ship back to its home port, a group of radio amateurs tries to find out how ICE is doing.

Emily Lakdawalla

Rosetta has turned on its cameras and sighted its comet for the first time since waking from hibernation. Next activity: waking the Philae lander.

Emily Lakdawalla

Vignettes from dozens of LPSC talks: GRAIL and LADEE at the Moon; ice and craters and conglomerates and organics and gullies on Mars; polar deposits and volatile elements on Mercury; tectonics on Enceladus; and more, until my brain was so full I could barely speak.

ESA Mars Express Team

In the latest update on how the Mars Express flight control team is planning to deal with Comet Siding Spring is all about attitude -- and hiding behind the biggest guy in the fight.

Bill Dunford

Cassini images in motion.

Bruce Betts

A 0.81m telescope in northern Italy is well on its way to being wide eyed and shiny thanks to a 2013 Planetary Society Shoemaker NEO Grant, which will enable it to make better near Earth object observations to help protect our planet from asteroid impact.

Emily Lakdawalla

At the Lunar and Planetary Science Conference, Jennifer Scully discussed possible water-carved gullies in an unusual location: within craters on Vesta. Water-carved gullies on Mars I can accept; but on an airless lumpy body? I was intrigued.

Emily Lakdawalla

Simon Kattenhorn and Louise Prockter may finally have found subduction zones on Europa, which would it the only other place in the solar system besides Earth that is known to have active plate tectonics.

Bill Dunford

Get an astronaut's view into several lunar craters.

Emily Lakdawalla

With a series of drives over the last week, Curiosity is now approaching her next science stop at Kimberley. The distinctive knobs of the Kimberley outcrop are visible in photos taken on sol 569.

Emily Lakdawalla

Since Seth MacFarlane tweeted that this weekend's episode of Cosmos was going to include a segment on lakes on Titan, I thought I'd write a post explaining the basics of Titan lakes.

Emily Lakdawalla

Check out the awesome new

Emily Lakdawalla

With all the excitement happening on missions criscrossing the solar system, I often forget to enjoy the views of our solar system that we can achieve from home. Amateur astronomers don't make the same mistake. Here's a lovely photo that Stuart Atkinson sent me, captured last night from Kendal, England, showing four special wanderers.

Amanda Zangari

Amanda Zangari shares what it's like to be a scientist on New Horizons, and explains some of the day-to-day workings of the mission behind the scenes.

ESA Mars Express Team

In the quest to track Comet Siding Spring, the Mars Express team tells us how computing the orbit of a comet isn't as straightforward as science fiction would have us believe.

Emily Lakdawalla

Rosetta's comet target, 67P/Churyumov-Gerasimenko, has emerged from behind the Sun as seen from Earth, and the Very Large Telescope has photographed it. The new images show that cometary activity has already begun as Rosetta approaches for its August rendezvous.

Casey Dreier

Europa may get a mission...eventually. We give our first take on the 2015 NASA Budget request. How does Planetary Exploration fare? Which projects were cancelled? Will NASA capture an asteroid? And most importantly, what can you do about it?

Emily Lakdawalla

In a series of drives, Curiosity flew past the