Articles

Emily Lakdawalla

Technically, Pluto science observations don't begin for New Horizons until 2015, but the spacecraft will take a series of photos of Pluto and Charon from July 20 to 27 as it begins the first of four optical navigation campaigns.

Stuart Atkinson

A European space enthusiast, children's author, and volunteer astronomy outreach worker asks for more images from Rosetta.

Casey Dreier

A standing-room only crowd learned the lure of Europa, the moon of Jupiter with more liquid water than the Earth, at a special Planetary Society event on capitol hill.

Emily Lakdawalla

What a great piece of news to receive upon returning home from vacation! There is now a small piece of the solar system named for me: asteroid 274860 has been formally named

Alessondra Springmann

Talking to spacecraft is a normal occurrence at Arecibo Observatory, but sometimes the nuts and bolts are a little unconventional.

Emily Lakdawalla

I could not wait to post these amazing new images of comet Churymov-Gerasimenko from Rosetta. The nucleus of the comet is clearly a contact binary -- two smaller (and unequally sized object) in close contact.

Mark Robinson

High resolution images from the Lunar Reconnaissance Orbiter Camera detail the 1973 path of the Soviet rover Lunokhod 2.

Peter Rosén

In 1979, the Voyager 1 probe took a stunning series of images on its final approach to Jupiter. Thirty-five years later, almost to the day, a group of seven Swedish amateur astronomers set out to replicate this odyssey, but with images taken with their own ground-based telescopes.

Emily Lakdawalla

As Cassini celebrates 10 years at Saturn, we're beginning to see its long-term observations of Saturnian moons bear fruit. A surprising new result: While Prometheus exerts control over the F ring and Atlas, Pandora -- long thought to be a shepherd of the F ring -- does not.

A.J.S. Rayl

Opportunity got off to a bumpy start in June, but the Mars Exploration Rover (MER) mission pressed on, continuing the exploration of Murray Ridge at the western rim of Endeavour Crater.

Jason Davis

A new animation of 67P/Churyumov-Gerasimenko captured by the Rosetta spacecraft shows the comet rotating.

Marc Rayman

Dawn's chief engineer and mission director Marc Rayman gives an overview of the plan for the penultimate orbital phase at Ceres, the “high altitude mapping orbit” (HAMO).

Larry Crumpler

Opportunity has left the winter haven and is still driving south along the rim of Endeavour crater, currently exploring an outcrop a few meters from crater rim.

Emily Lakdawalla

A new composite image of the eight named moons that orbit closest to Saturn, and a list of all the best Cassini observations of these moons.

Emily Lakdawalla

On Monday JPL put out a press release marking one year since Curiosity landed -- one Mars year, that is! There was a new version of the Kimberley self-portrait, and a video update on wheel wear testing. While we've been celebrating on Earth, Curiosity has been driving, driving, driving, on a new

Emily Lakdawalla

The two spacecraft currently orbiting the two innermost planets are both flying low in their orbits in the final phases of their missions. MESSENGER just performed a rocket burn to raise its orbit slightly, while Venus Express did the opposite.

Bill Dunford

Seeing Saturn before and after Cassini.

Emily Lakdawalla

I am both elated and relieved that Rob Manning and William Simon have written Mars Rover Curiosity: An Inside Account from Curiosity's Chief Engineer. The book delivers on the promise of its title, in a slender volume that is full of great stories you'll read nowhere else.

Emily Lakdawalla

Rosetta has now completed its three largest rendezvous burns as it approaches ever closer to comet 67P/Churyumov-Gerasimenko. Beginning on July 2, Rosetta will now conduct weekly burns, through August 6. Meanwhile, the cometary activity of April and May has quieted again, leaving the comet looking smaller than it did before.

Emily Lakdawalla

Will New Horizons have a mission after Pluto? Ground-based searches have failed to turn up anything that New Horizons can reach. Now Hubble is joining the search, but time is running out: a discovery must be made within the next two months.