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
Blogs

Blog Archive

 

Yet another Jupiter impact!? August 20, seen from Japan

Posted by Emily Lakdawalla on 2010/08/22 05:03 CDT

This may be a very common event after all: another optical flash has been observed on Jupiter, again from an observer far east of the Greenwich meridian, though it was not Anthony Wesley (for once).

Read More »

2008 LC15, the first Trojan asteroid discovered in Neptune's L5 point

Posted by Emily Lakdawalla on 2010/08/13 10:52 CDT

Congratulations to Scott Sheppard and Chad Trujillo for identifying the first known L5 Trojan asteroid of Neptune!

Read More »

Volcanism across the solar system: Io

Posted by Emily Lakdawalla on 2010/07/20 05:33 CDT

Three months ago, grandiosely, I announced that I was going to survey volcanism across the solar system, and I began the journey on Earth. Then I failed to follow up.

Read More »

Is this SMART-1's impact site?

Posted by Emily Lakdawalla on 2010/06/15 12:44 CDT

Speaking of spacecraft crashing...

Read More »

Pretty picture: Messier 83

Posted by Emily Lakdawalla on 2010/05/19 11:43 CDT

What does a barred spiral galaxy look like? THIS is what a barred spiral galaxy looks like.

Read More »

Jupiter has lost a belt!

Posted by Emily Lakdawalla on 2010/05/10 05:22 CDT

Via Daniel Fischer's Tweet about a blog entry by Astro BobI learned of something which should be obvious to anyone who has trained even a rather small telescope on Jupiter over the past few weeks: one of its iconic stripes is just plain gone.

Read More »

Gravity's Bow

Posted by Timothy Reed on 2009/06/15 03:56 CDT

Timothy Reed explains how optical telescopes are tested for gravity sag, and the methods used to counteract or compensate for it.

Read More »

Aloha, Io

Posted by John Spencer on 2009/06/08 01:49 CDT

Taking a look at Jupiter's moon, Io, from Hawaii.

Read More »

Farewell to Hubble, Obama Calls, Astronauts Testify to Congress as Shuttle is Set to Land

Posted by Ken Kremer on 2009/05/22 05:13 CDT

Farewell to Hubble, Obama Calls, Astronauts Testify to Congress as Shuttle is Set to Land

Read More »

An Auspicious Week for Astronomy

Posted by Mark Adler on 2009/05/11 11:54 CDT | 1 comments

On Monday, if all goes well, we will launch the Space Shuttle to rejuvenate one the greatest scientific missions launched on or off the Earth: the Hubble Space Telescope.

Read More »

Mapping Mars, now and in history

Posted by Emily Lakdawalla on 2009/02/26 04:23 CST

Planetary cartographer Phil Stooke has been working on a cool project to compose and compare maps of Mars that show how we saw the planet throughout the Space Age.

Read More »

Treasures from Mars' ancient history

Posted by Emily Lakdawalla on 2009/01/28 12:06 CST

In which I discover Earl Slipher's Mars: The Photographic Story.

Read More »

OPAG, Day 2: Ground-based study of the small bodies in the outer solar system

Posted by Emily Lakdawalla on 2006/05/07 08:10 CDT

After the political discussions of the morning, Mike Brown stood up to give the "highly subjective view of one ground-based astronomer," he said.

Read More »

No Longer Boring: 'Fireworks' and Other Surprises at Uranus Spotted Through Adaptive Optics

Posted by Emily Lakdawalla on 2004/11/11 07:10 CST

Uranus has the unfortunate reputation of being the most boring planet in the solar system. But where it appeared to be a nearly featureless, hazy blue ball to Voyager 2, it is now blooming dozens of clouds that are visible to the sharp-eyed Keck II Telescope.

Read More »

Close Your Left Eye, Then Your Right: Simultaneous Observations of Asteroid 4179 Toutatis from Two Chilean Telescopes Demonstrate Parallax

Posted by Emily Lakdawalla on 2004/09/29 12:00 CDT

This morning, asteroid 4179 Toutatis was so close to Earth that simultaneous observations from two telescopes in the same country could show parallax that is obvious even to the least experienced observer. The two telescopes belong to The European Southern Observatory and are located at La Silla and Paranal in Chile

Read More »

Items 61 - 75 of 75  Previous1234
Facebook Twitter Email RSS AddThis

Advocacy

Election 2016

Space rarely makes a strong showing in national elections, despite the major state of transition NASA finds itself in today.

Help us catalog and source statements made by candidates referring to civil space issues.

Learn More

Featured Images

Tempel 1
Mercury and Venus from MESSENGER
HiRISE view of Curiosity, sol 1207 (December 29, 2015)
Tiny grains of Martian sand
More Images

Featured Video

Intro Astronomy 2016. Class 2: How We Explore Space

Watch Now

Space in Images

Pretty pictures and
awe-inspiring science.

See More

Join the New Millennium Committee

Let’s invent the future together!

Become a Member

Connect With Us

Facebook, Twitter, YouTube and more…
Continue the conversation with our online community!