Articles

Bruce Betts

An update from Yale’s Debra Fischer about the Alpha Centauri planet hunt, partially sponsored by The Planetary Society, as well as her team’s efforts to remove “noise” from parent stars to help find exoplanets.

Emily Lakdawalla

Yesterday, the much-anticipated comet ISON made its closest pass by Mars. Mars Reconnaissance Orbiter's HiRISE camera is the first to achieve a positive detection of the somewhat-fainter-than-expected comet in its photos.

Mat Kaplan

The Benford brothers provide inspiration and hard fact in their excellent new anthology about interstellar travel.

Van Kane

The European Space Agency will announce two major science missions this November, one of which is likely to be devoted to solar system exploration.

Emily Lakdawalla

What have the recent discoveries of thousands of exoplanets told us about how we got here, and whether we are alone? In Destiny or Chance Revisited, Stuart Ross Taylor attempts to answer those two questions.

Bruce Betts

Using a Shoemaker NEO Grant a new telescope is operating in Illinois to do asteroid tracking.

Emily Lakdawalla

The world's great telescopes capture stunning photographs of stars, nebulae, and other sky phenomena. In Europe to the Stars, authors Govert Schilling and Lars Lindberg Christensen share many such photos. But the real stars of this book are the great telescopes of the European Southern Observatory.

Emily Lakdawalla

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.

Bruce Betts

The Planetary Society sponsored Alpha Centauri planet search started using a newly upgraded system in May. Here is a quick update including info from project leader Debra Fischer from Yale about their new system.

Mat Kaplan

You can be part of a planetwide group photo as Cassini and MESSENGER turn their cameras Earthward on July 19.

Jason Davis

The European Space Agency’s Herschel Space Observatory received its final commands yesterday, having depleted the liquid helium required to make its infrared observations.

Jim Bell

I'm absolutely floored when I stop to think that our beautiful blue ocean is only one of perhaps a half dozen or more oceans on other worlds in our solar system, and only one of probably millions (or more) oceans on other Earth-like planets in our galaxy. Oceans abound!

Mat Kaplan

A live conversation about just a few of the powerful new instruments that will revolutionize our knowledge of the cosmos once again.

Mat Kaplan

The extended, mostly unedited recordings of my conversations with many of the people I spoke to at the ALMA Observatory in Chile. Also, the full English translation of Chilean President Sebastian Pinera's speech.

Emily Lakdawalla

This week I'll be talking with NEOWISE principal investigator Amy Mainzer about moving objects that the WISE mission has spotted both inside and outside our solar system.

Mat Kaplan

The second in a series of audio blogs chronicling my trip to the driest spot on Earth, Chile's Atacama desert, to see the inauguration of the ALMA Observatory. Al Wootten and Alison Peck tell the story of ALMA.

Emily Lakdawalla

A recently discovered comet, C/2013 A1 (Siding Spring), is going to be passing very close to Mars on October 19, 2014. Does it pose a risk to spacecraft?

Emily Lakdawalla

Emily Lakdawalla and Courtney Dressing talked about just how common Earth-sized exoplanets may be in our neighborhood. Watch the replay here.

Emily Lakdawalla

How come Hubble's pictures of galaxies billions of light years away are so beautifully detailed, yet the pictures of Pluto, which is so much closer, are just little blobs? I get asked this question, or variations of it, a lot. Here's an explainer.

Emily Lakdawalla

Deep Impact has made the first space-based observations of comet ISON.