Help Shape the Future of Space Exploration

Join The Planetary Society Now  arrow.png

Join our eNewsletter for updates & action alerts

    Please leave this field empty

Blog Archive


Stardust prepares for first second look at a comet: Tempel 1 on February 14

Posted by Emily Lakdawalla on 2011/01/19 02:53 CST

A press briefing was held at NASA Headquarters this morning to preview the planned February 14 encounter by Stardust with Tempel 1. There aren't often lots of questions from media after these "preview" briefings, but today there were zero. That's not good.

Read More »

Door 31 in the 2010 advent calendar

Posted by Emily Lakdawalla on 2010/12/31 09:41 CST

Time to open the thirty-first (and next-to-last) door in the advent calendar. Where in the solar system are these dark-rimmed craters?

Read More »

365 Days of Astronomy Podcast: Small Worlds

Posted by Emily Lakdawalla on 2010/12/27 03:56 CST

Today the 365 Days of Astronomy podcast aired my contribution, Small Worlds, about the smaller denizens of the solar system visited in the past year, and due to be visited in the next.

Read More »

Deep Impact at Hartley 2: Two weeks after the flyby

Posted by Emily Lakdawalla on 2010/11/18 01:52 CST

Today the Deep Impact/EPOXI science team held a press briefing that followed up on their very successful flyby of two weeks ago, a status report on what they can say so far about the science that's coming out of the encounter.

Read More »

In which I finally write up last week's Deep Impact Hartley 2 press briefing

Posted by Emily Lakdawalla on 2010/11/09 01:13 CST

On Thursday, November 4, at 13:50 UTC, Deep Impact flew within 700 kilometers of comet Hartley 2. Hartley 2 is the smallest and most active of the five comets that have been directly by a spacecraft, and the first to be visited within the lifetime of its discoverer.

Read More »

Hartley 2 compared to other comets, and in motion 3D

Posted by Emily Lakdawalla on 2010/11/05 06:17 CDT

I had to catch up with tasks left undone at home today and didn't have time to write up my notes from the Hartley 2 press briefing, for which I apologize. I'll leave you for the weekend with three cool Hartley 2 pictures.

Read More »

Hartley 2's jets

Posted by Emily Lakdawalla on 2010/11/04 04:44 CDT

It was a very happy set of scientists, engineers, managers, and administrators who filled the Jet Propulsion Laboratory's Von Karman auditorium this afternoon to do the postgame show on Deep Impact's flyby of Hartley 2.

Read More »

Animation of the five closest-approach Hartley 2 images

Posted by Emily Lakdawalla on 2010/11/04 11:24 CDT

Those of you who follow my blog must have known this was coming: now that I got all five new Deep Impact images of Comet Hartley 2 posted and explained, I had to make an animation. Here they are.

Read More »

Five close-approach images of Hartley 2 by Deep Impact, with commentary

Posted by Emily Lakdawalla on 2010/11/04 10:58 CDT

Here's the five close-approach images of Hartley 2 captured today, November 4, 2010, by the Deep Impact spacecraft, collected into one file. Boy, do these images reward close examination!

Read More »

Close approach images of Hartley 2!

Posted by Emily Lakdawalla on 2010/11/04 10:24 CDT

What a dramatic and cool photo! An asteroid with two lobes like Borrelly, lumpy and bouldery like Itokawa, with gorgeous active jets, dramatically lit. Well done, Deep Impact team!

Read More »

Deep Impact successfully passed closest approach, signal reaquired, data downlinking

Posted by Emily Lakdawalla on 2010/11/04 09:16 CDT

Just a very brief update to congratulate the Deep Impact team on what was apparently a successful flyby of Hartley 2!

Read More »

Deep Impact's encounter with Hartley 2 is beginning; flyby in 17 hours

Posted by Emily Lakdawalla on 2010/11/03 03:39 CDT

According to the mission timeline, the Deep Impact high-resolution observations of Hartley 2 are beginning in just a few minutes, at 20:50 according to the clock on the spacecraft.

Read More »

Deep Impact movies of outbursts from Hartley 2

Posted by Emily Lakdawalla on 2010/11/01 10:38 CDT

Since comet Hartley 2 -- the target of Deep Impact's November 4 flyby -- is near its perihelion, it's no surprise that it's an active comet with lots of outbursts.

Read More »

Three days until Deep Impact's encounter with Hartley 2

Posted by Emily Lakdawalla on 2010/11/01 01:27 CDT

The week is finally here: Deep Impact flies past Hartley 2, the smallest comet yet to be visited by a spacecraft, on Thursday, November 4 at 13:50 UTC.

Read More »

Arecibo images show Hartley 2 is elongated

Posted by Emily Lakdawalla on 2010/10/29 11:33 CDT

Comet Hartley 2, the target for Deep Impact's close flyby (now just six days away!) made its closest approach to Earth on October 20, at a distance of 17.7 million kilometers.

Read More »

A couple of tidbits from today's Deep Impact preview briefing

Posted by Emily Lakdawalla on 2010/10/26 03:01 CDT

Today was the press briefing that previewed the upcoming Deep Impact flyby of Hartley 2.

Read More »

Deep Impact approaching Hartley 2

Posted by Emily Lakdawalla on 2010/09/22 04:23 CDT

The Deep Impact spacecraft team has released a third image from their approach to comet Hartley 2, and for me, three images is an invitation to make an animation!

Read More »

Deep Impact snaps first image of flyby target comet Hartley 2

Posted by Emily Lakdawalla on 2010/09/08 12:51 CDT

Deep Impact is rapidly approaching its next -- and final -- target, comet Hartley 2, which it will fly by on November 4.

Read More »

Report from the Exploration of Near-Earth Objects Objectives Workshop - Day 2

Posted by Bruce Betts on 2010/08/11 04:45 CDT

It's day 2 at NASA's Exploration of Near Earth Objects (NEO) Objectives workshop (ExploreNOW).

Read More »

What's up in the solar system in January 2010

Posted by Emily Lakdawalla on 2010/01/04 01:29 CST

While we don't have Moon bases, we do have plenty of spacecraft. Before I get into my more detailed look at the activities of the 20-odd spacecraft wandering about the solar system, I thought I'd look ahead to 2010 more generally and see what the year has in store for us.

Read More »

Items 21 - 40 of 61  Previous1234Next
Facebook Twitter Email RSS AddThis


Advocate for Space!

Fifteen years ago, Society members and passionate space advocates like you helped save the Pluto mission. Now we can do the same for missions to Europa and Mars.

Join over 27,600 people who have completed their petition and consider a donation to support advocacy efforts.

Sign Our Petition

Featured Images

Charon in 3D
Space Launch System on the launchpad (artist's concept)
The Magnificent Neptunian System
Pluto's blue skies
More Images

Featured Video

A Perfect, Clear Day: LightSail's Launch

Watch Now

Space in Images

Pretty pictures and
awe-inspiring science.

See More

Selfies to Space!

Take flight with a selfie on LightSail™ in 2016!

Send a Selfie Now

Connect With Us

Facebook! Twitter! Google+ and more…
Continue the conversation with our online community!