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SOHO's 2000th comet

Emily Lakdawalla • December 29, 2010

SOHO was launched more than 15 years ago to study the Sun, primarily; but a side benefit of its constant observation of the Sun has been its ability to notice "sungrazers," comets that are on deadly close approaches to our star.

A Martian Moment in Time, revisited

Emily Lakdawalla • May 12, 2010

A good start to my day today: The New York Times' Lens Blog featured the "Martian Moment in Time" photo that Opportunity took last week in a really nice writeup. I'm so grateful, and still a little surprised, that the folks on the Mars Exploration Rover mission took this idea and ran with it!

What it looks like when a CME explodes toward us

Emily Lakdawalla • April 14, 2010

The animation I posted yesterday, of a huge coronal mass ejection exploding away from the Sun, caused several people to ask if it could do Earth any harm.

Stellar explosion

Emily Lakdawalla • April 13, 2010

The Sun just spat out a huge coronal mass ejection, an event made visible by the watchful cameras on SOHO.

Revolutionary NASA Solar Explorer Roars to Space

Ken Kremer • February 15, 2010

Planetary Society volunteer Ken Kremer reports for us from the Kennedy Space Center, where he is covering the launch of Space Shuttle Endeavour, set to launch this weekend.

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