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Intro Astronomy Class 6: Mars (continued) and Asteroids

Bruce Betts • March 14, 2014

Continue exploring Mars and learn about asteroids in this video of class 6 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

Pretty pictures of terraced craters on Mars

Emily Lakdawalla • February 27, 2014

Check out this unusual crater on Mars. It's not a very big one, less than 500 meters in diameter, and yet it has two rings. Most craters on Mars this size are simple bowl shapes. What's going on here?

Who is the photographer behind Mars rover photos? Answer from Mark Lemmon

Mark Lemmon • December 21, 2012

A Mars imaging scientist answers the question: who is the "photographer" behind images returned from Mars?

Mars Exploration Family Portrait

Emily Lakdawalla • November 23, 2011

Jason Davis put together this neat summary of the checkered history of Mars exploration.

Phoenix is dead...long live Phoenix!

Emily Lakdawalla and Bruce Betts • June 02, 2010

The latest HiRISE images of the Phoenix polar lander, taken near Mars' northern summer solstice, show why we haven't heard from the spacecraft since it fell silent on November 2, 2008: it appears the solar panels have collapsed.

Happy solstice -- on Mars

Emily Lakdawalla • May 13, 2010

It's the solstice on Mars today: summer in the north, winter in the south.

No signal from Phoenix

Emily Lakdawalla • April 14, 2010

After three listening campaigns taking place from January through April, Mars Odyssey has detected no signal from Phoenix.

LPSC, Day 1: Spirit and Phoenix

Emily Lakdawalla • March 02, 2010

Where to begin with the Lunar and Planetary Science Conference (LPSC)?

Odyssey's going to start listening for Phoenix

Emily Lakdawalla • January 11, 2010

It's been the second most popular question I get from readers: "When might we possibly hear from Phoenix?"

Happy Christmas on Mars!

Emily Lakdawalla • December 24, 2009

This was so cute I had to repost it -- and record it too.

No, they can't push with the arm to free Spirit

Emily Lakdawalla • December 15, 2009

I've gotten this question about once a week since Spirit got stuck, but yesterday, two different readers asked the same question within an hour of each other, so I figured it was time for a blog entry.

HiRISE sees Phoenix in the Martian spring

Emily Lakdawalla • October 28, 2009

These Mars Reconnaissance Orbiter HiRISE images of the defunct Phoenix lander in the early dawn light of northern spring have been out for some time, but no one had accomplished the difficult task of locating the Phoenix hardware in them until this week.

Phoenix Mission Receives OK to Listen for Sounds on Mars

Emily Lakdawalla • September 18, 2008

Good news, everyone! The jillions of you who have asked me "are they ever going to record sounds using microphone on Phoenix?" now have at least part of an answer.

Danes on Mars

Emily Lakdawalla • July 17, 2008

I was delighted to receive an email from Morten Bo Madsen, who I knew from the Mars Exploration Rover mission as "that Danish magnet guy," the fellow responsible for the magnet experiments on nearly every American Mars mission. The magnets were originally designed to study the properties of airborne Martian dust, which would help determine its composition.

More things to see in the amazing HiRISE image of Phoenix' descent

Emily Lakdawalla • July 10, 2008

I have posted several times about the amazing photo captured by HiRISE of Phoenix under its parachute as it descended. There have been two common questions I've received about the photo: was there any color data taken, and what more can I tell you about how hard it was to take the photo? I've got answers to both questions for you today.

Yep, it's ice!

Emily Lakdawalla • June 20, 2008

The Phoenix mission confirmed it this morning: the disappearing act pulled by those chunks of bright material in the Dodo trench pretty much nails the identification of the bright material as ice, which is great news for the mission. Ice is what Phoenix went all the way to Mars to study; it's what the team has been aiming for all these years.

Phoenix Sol 2 press conference, in a nutshell

Emily Lakdawalla • May 27, 2008

Emily hits the high points of today's press conference.

What's up in the solar system for the week of May 12

Emily Lakdawalla • May 12, 2008

It's time to check in on what's going on with our trusty robots around the solar system.

What's up in the solar system for the week of April 28

Emily Lakdawalla • April 28, 2008

I thought it would be fun to start the week by taking stock of what's going on with all the active planetary missions out there.

No descent images or sounds from Phoenix

Emily Lakdawalla • November 15, 2007

A couple of days ago Malin Space Science Systems (MSSS) issued a news notice that explains some of the horse-trading that went on behind the scenes to rescue MARDI, the descent imaging camera that they are building for the Mars Science Laboratory rover.

astronaut on Phobos
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