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More Issues

Feature: Exoplanets

2 March 2020

Your Guide to Exoplanets

Learn why and how we study exoplanets, and how you can get involved.

2 March 2020

Our Exoplanets Research

Scientists are searching for 100 Earth-like planets around other stars, and you can help.

Swapna Krishna ● 12 March 2020

What is the Habitable Zone?

The habitable zone is the not-too-hot, not-too-cold region around a star where liquid water can exist.

Emily Lakdawalla ● 2 March 2020

The Different Kinds of Exoplanets
You Meet in the Milky Way

Lava worlds. Hot Jupiters. Earth 2.0 candidates. Here's a rundown of some notable exoplanets.

Emily Lakdawalla & Staff ● 2 March 2020

How to Search for Exoplanets

Some methods almost sound like science fiction: Using gravity as a magnifying glass, watching stars wobble at turtle-like speeds, and searching for tiny dips in starlight.

2 March 2020

Your guide to WFIRST

WFIRST, NASA's Wide Field Infrared Survey Telescope, is the next step in our hunt for Earth-sized exoplanets.

Blogs & Articles

Crowdsourcing the Andromeda Galaxy

Jason Davis • December 11, 2012 • 1

Scientists would like your help starting at high-resolution images of the Andromeda Galaxy captured by the Hubble Space Telescope.

Exploring the XDF: The Hubble eXtreme Deep Field

Mat Kaplan • October 09, 2012 • 1

The newly-released eXtreme Deep Field takes us even further back into the history of our universe than the Ultra Deep Field or UDF.

New spots on Uranus

Emily Lakdawalla • August 22, 2012 • 5

New Hubble photos show that Uranus has both dark and bright spots!

Salacia: As big as Ceres, but much farther away

Emily Lakdawalla • June 26, 2012 • 10

A newly published paper shows trans-Neptunian object Salacia to be unexpectedly large; it's somewhere around the tenth largest known thing beyond Neptune. It has a companion one-third its size, making it appear similar to Orcus and Vanth.

More Venus transits in 2012

Jay Pasachoff • June 07, 2012 • 3

A transit of Venus as seen from Jupiter may be observed by Hubble on September 20 and a transit of Venus as seen from Saturn will be observed by Cassini on December 21.

NRO gives NASA two hand-me-down telescopes

Jason Davis • June 07, 2012 • 4

The National Reconnaissance Office has donated two, partially-completed space telescopes to NASA, revealed at a National Academies' Committee on Astronomy and Astrophysics meeting this week.

Artist's views of a night sky transformed by a galaxy merger

Emily Lakdawalla • June 04, 2012 • 2

A measurement of the Andromeda galaxy's proper motion shows it's coming directly at us, and will collide with the Milky Way in 4 billion years. The event will transform the appearance of our night sky.

Hey amateurs! ESA's running an image processing contest: "Hubble's Hidden Treasures!"

Emily Lakdawalla • March 27, 2012

Here's a newly announced contest that is right up my alley and, I hope, of interest to regular readers of this blog. ESA has just announced "Hubble's Hidden Treasures," a contest to encourage what I've been trying to get people to do for years: trawl through the Hubble archives to find unappreciated tresures of photos and make them pretty for public consumption. They have two categories, one for newbies (who can use image processing tools provided on ESA's website) and one for more serious amateurs (who can use other software).

Bill Nye and people
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