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Space Missions

Our Emissaries Across the Solar System

Earth has launched thousands of spacecraft, but precious few have made it beyond Earth orbit. Currently, 13 spacecraft representing 11 missions are actively gathering science data from planetary destinations. These are MESSENGER at Mercury; Venus Express at Venus; Lunar Reconnaissance Orbiter, GRAIL, and ARTEMIS at the Moon; Odyssey, Mars Express, Mars Reconnaissance Orbiter, and Opportunity at Mars; Dawn at Vesta; and Cassini at Saturn.

Meanwhile, Curiosity is on its way to Mars, Rosetta to a comet, New Horizons to Pluto, and Akatsuki attempting to retry a Venus arrival, while Chang'E 2 and both Voyagers have turned from planetary to heliophysics missions, and IKAROS' condition is unknown. All of these missions follow in the footsteps of dozens of predecessors, the few human-built artifacts ever to have departed Earth.

Recent Mission Status Updates

MAVEN orbit insertion timeline

Posted by Emily Lakdawalla on 2014/09/21 12:55 CDT | 3 comments

Today's the day that MAVEN enters orbit at Mars, bringing the number of Mars orbiters up to four. So far everything looks good. The orbit insertion burn should begin tonight at 18:50 PDT / 01:50 UTC. I'll be on stage with Mat Kaplan and Rich Zurek at Planetary Radio Live, keeping up to date with the latest news from the spacecraft; here is a timeline in PDT, UTC, CEST, and IST to help you follow along.

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Comet Siding Spring Mars encounter: One Mars Express plan becomes two

Posted by ESA Mars Express Team on 2014/09/17 10:44 CDT | 2 comments

The Mars Express Flight Control Team at ESOC have been actively preparing for the flyby of comet C/2013 A1/Siding Spring on October 19. Initial estimates gave the possibility that Mars Express might be hit by 2 or 3 high-speed particles. Happily, additional observations by ground and space telescopes have shown the risk to be much lower – and perhaps even as low as zero. In today's blog post, the team explain how this (happy!) real-life, real-time development is affecting their preparations for fly-by.

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Space Mission Timelines

Missions to Venus and Mercury

A list of key dates and basic facts on all the missions that have explored Venus.

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Missions to Mars

The missions, both successful and failed, that have flown by, orbited, or landed on the Red Planet and its moons

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Missions beyond Mars

The spacecraft that have traveled to asteroids, outer planets, comets, and beyond

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Missions to the Moon

A timeline of missions to the Moon

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Cassini’s Tour of the Saturn System

13 years, 250 orbits, and 127 gravity-assist flybys – explore the Saturn system with NASA's Cassini mission.

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Pictures of Spacecraft

Space mission artwork, snapshots of construction, launches, and photos of spacecraft in space

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Missions to study the Sun

Spacecraft that study our dynamic Sun and help us understand how it affects our planet.

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Fly to an Asteroid!

Travel to Bennu on the OSIRIS-REx spacecraft!

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