Articles

Casey Dreier

NASA announced the first-round selections for its next Discovery mission today. A total of five planetary mission concepts -- three targeted at asteroids, two at Venus -- will move to the next stage of the competition.

Marc Rayman

On the 8th anniversary of the launch of the Dawn spacecraft, Chief Engineer and Mission Director Marc Rayman gives his annual summary of Dawn’s progress on its interplanetary travels.

Dante Lauretta

Historically, NASA missions set aside a portion of their budgets for education and public outreach, or EPO. However, the OSIRIS-REx EPO budget got deleted in 2013 as part of a broader federal policy change. Dante Lauretta decided to make a run at a private company to recover the lost OSIRIS-REx EPO program – and Xtronaut was born!

Emily Lakdawalla

When Rosetta approached comet Churyumov-Gerasimenko last summer, both its shape and its activity were surprising. It looked like two comets welded together at a skinny neck. A new paper explains how the neck may be steepening itself.

Emily Lakdawalla

For months, Dawn has been steadily, methodically sharing dozens of images of brand-new sights of a previously unexplored icy world. For the last couple of days I've been making up for lost time, completely buried in the Dawn Ceres images, and I have some maps and 3D anaglyphs to share with you.

Mattias Malmer

Mattias Malmer describes his MacGyver-esque process in creating a homemade aluminum version of 67P/Churyumov–Gerasimenko.

Dante Lauretta

The assembly of the OSIRIS-REx spacecraft continues, with many elements integrated onto the spacecraft ahead of schedule. Last month both OTES and OVIRS were delivered to Lockheed Martin and installed on the science deck.

Marc Rayman

More than two centuries after its discovery, Ceres is being mapped in great detail by the Dawn spacecraft. Chief Engineer and Mission Director Marc Rayman gives an update on Dawn's progress.

Emily Lakdawalla

A terrific new visualization tool for comet 67/P Churyumov-Gerasimenko demonstrates the value of sharing mission image data with the public. The browser-based tool lets you spin a simulated 3D view of the comet. It began with a 3D model of the comet created not by ESA, but by a space enthusiast, Mattias Malmer.

Emily Lakdawalla

I'm back from two weeks' vacation, so it's time to catch up on the status of all our intrepid planetary missions, from Akatsuki to the Voyagers and hitting the Moon, Mars, asteroids, comets, and Saturn in between.

Bill Dunford

Another round of posters to celebrate historic planetary missions.

Marc Rayman

With a wonderfully rich bounty of pictures and other observations already secured, Dawn is now on its way to an even better vantage point around dwarf planet Ceres.

Van Kane

Van Kane rounds up some of the latest NASA Discovery mission proposals aiming to explore our solar system's smallest bodies.

Emily Lakdawalla

Have you ever wanted to name an asteroid? JAXA is offering the opportunity to name Hayabusa2's target asteroid, 1999 JU3 to the public through a contest that runs through August 31.

Andrew Rivkin

While Pluto deservedly stole the headlines last week, Chris Russell’s Dawn update at the Exploration Science Forum at NASA Ames reminded us that the other dwarf planets are also sharing their secrets with eager scientists.

Annie Wargetz

While the OLA, OCAMS, and REXIS instruments on the OSIRIS-REx spacecraft continue working towards their deliveries, other hardware onsite at Lockheed is undergoing testing prior to installation. The hardware is put through tests here on Earth prior to launching into space.

Emily Lakdawalla

Now that I have a reasonable-resolution global color view of Pluto, I can drop it into one of my trademark scale image montages, to show you how it fits in with the rest of the similar-sized worlds in the solar system: the major moons and the biggest asteroids.

Emily Lakdawalla

As a followup to yesterday's post about Dawn, Juno, and OSIRIS-REx, I have updates on two more missions. With this post, I hope to have cleared the decks so that I can focus on Pluto for the next week!

Emily Lakdawalla

With all the focus on Pluto it's hard to keep up with all the other space missions currently exploring other planets. Here are brief updates on three of them.

Emily Lakdawalla

Last week, the European Space Agency released the first set of images from Rosetta's navigational camera, or NavCam, from the phase of the mission that followed the Philae landing. That makes more than 3500 NavCam images that have been released from the comet phase of the mission.