Join Donate

Blog Archive

 

Relative and absolute ages in the histories of Earth and the Moon: The Geologic Time Scale

Emily Lakdawalla • September 30, 2013

A few days ago, I wrote a post about the basins of the Moon -- a result of a trip down a rabbit hole of book research. Here's the next step in that journey: the Geologic Time Scales of Earth and the Moon.

Gravity assist

David Shortt • September 27, 2013

With the recent announcement by NASA that the 36 year-old spacecraft Voyager 1 has officially entered interstellar space at a distance from the sun about four times further than Neptune's orbit, and with Voyager 2 not far behind, it seems worthwhile to explore how humans managed to fling objects so far into space.

Dating the Moon's basins

Emily Lakdawalla • September 26, 2013

A paper in press in the Journal of Geophysical Research uses new data from Lunar Reconnaissance Orbiter to update our story for the history of the Moon's massive impacts.

Two new ways to browse Vesta: 1. Vesta Low-Altitude Mapping Orbit (LAMO) Atlas

Emily Lakdawalla • September 16, 2013

Last week was the European Planetary Science Congress in London, and there's been a lot of science news. One thing that caught my eye Friday was the publication of a new atlas for Vesta.

Has Voyager 1 left the Solar System?

Bruce Betts • September 12, 2013

Has Voyager 1 left the Solar System? NASA announced it has entered interstellar space. What does that mean? Check out this short video discussing the answers.

Mars' valley networks tell us of a dry, then wet, then dry Mars

Emily Lakdawalla • September 10, 2013

Was there rainfall on Mars? Recent work mapping valley networks suggests there probably was -- but only for about 200 million years. What does this mean for life, and the Curiosity mission?

Go LADEE!

Mat Kaplan • September 10, 2013

Listen to or watch the recording of our live celebration for LADEE as the spacecraft blasted off for the moon.

Watch LADEE Launch to the Moon with The Planetary Society

Mat Kaplan • September 06, 2013

Starting at 7:30pm PDT/10:30pm EDT, we will webcast a special event around the launch of NASA's next lunar spacecraft. Watch our special coverage with lunar scientists and live video from the launch site, as well as NASA TV footage of the launch itself.

Pluto's atmosphere does not collapse

Emily Lakdawalla • September 06, 2013

Just four months ago I posted about a paper recently published by Leslie Young and coauthors that described three possible scenarios for Pluto's atmosphere. Yesterday, Cathy Olkin, Leslie Young, and coauthors posted a preprint on arXiv that says that only one of those scenarios can be true. And it's a surprising one. The title of their paper says it all: "Pluto's atmosphere does not collapse."

Mars, Old and New: A Personal View by Bruce Murray

Jennifer Vaughn • September 03, 2013

An interview with Bruce Murray from 2001 about his perspectives on Mars science and exploration: past, present, and future.

Results of ten Venus years of cloud tracking by Venus Express

Emily Lakdawalla • August 29, 2013

What Venus Express' Visual Monitoring Camera images of Venus have taught us about the motions of Venus' atmosphere.

Probing Titan's Atmosphere

Sarah Hörst • August 26, 2013

By now I hope that everyone has seen some of the spectacular images of the Saturn system (and especially Titan!) from the Cassini-Huygens mission. However, the measurements that often make my heart race are taken by instruments that reveal Titan in ways that our eyes cannot see.

Updates on Curiosity from Ken Herkenhoff: Embarking for Mount Sharp (sols 326-372)

Ken Herkenhoff • August 23, 2013

United States Geological Survey scientist Ken Herkenhoff posts regular updates on the Curiosity science team's plans for the rover on Mars.

Caution: Spacecraft Under Construction

Mat Kaplan • August 20, 2013

Join Emily Lakdawalla and Mat Kaplan inside JPL's High Bay 1, where two Earth-revealing missions are being readied for launch.

Movie of Phobos and Deimos from Curiosity: super cool and scientifically useful

Emily Lakdawalla • August 16, 2013

Yesterday, the Curiosity mission released the video whose potential I got so excited about a couple of weeks ago: the view, from Curiosity, of Phobos transiting Deimos in the Martian sky. In this post, Mark Lemmon answers a bunch of my questions about why they photograph Phobos and Deimos from rovers.

Pluto on the Eve of Exploration by New Horizons: Is there an ocean, or not?

Emily Lakdawalla • August 02, 2013

Does Pluto have an ocean under its ice? If it doesn't now, did it ever have one? How will we know?

Happy 32! Happy New Mars Year!

Emily Lakdawalla • July 31, 2013

They're too far apart to have a party, but today Curiosity and Opportunity could have rung in the New Mars Year. Today Mars reached a solar longitude of zero degrees and the Sun crossed Mars' equator, heralding the arrival of spring in the northern hemisphere and autumn in the southern hemisphere.

Pluto on the Eve of Exploration by New Horizons: A problem of cartography

Emily Lakdawalla • July 30, 2013

Last Thursday at the Pluto Science Conference there was a surprising and interesting talk by Amanda Zangari, who pointed out a serious problem with Pluto cartography.

Pluto on the Eve of Exploration by New Horizons: Small moons, dust, surfaces, interiors

Emily Lakdawalla • July 24, 2013

My roundup from notes on the day's presentations on dust in the Pluto system and the surfaces and interiors of Pluto and Charon.

Planetary Geomorphology Image of the Month: Water tracks on Earth and Mars

Emily Lakdawalla • July 18, 2013

The International Association of Geomorphologists' "planetary geomorphology image of the month," contributed by Joe Levy, features water tracks on Earth and compares them to recurring slope lineae on Mars.

Items 161 - 180 of 374  Previous12345678910Next
astronaut on Phobos
Let's Change the World

Become a member of The Planetary Society and together we will create the future of space exploration.

Join Today

Europa
The Planetary Fund

Help advance robotic and human space exploration, defend our planet, and search for life.

Donate

You are here: