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In this artist's conception, the atmosphere of an Earth-like planet displays a brownish haze - the result of widespread pollution. New research shows that the upcoming James Webb Space Telescope potentially could detect certain pollutants, specifically CFCs, in the atmospheres of Earth-sized planets orbiting white dwarf stars. Image credit: Christine Pulliam (CfA)
Science Wire | Jul 24, 2014

Can we find aliens by looking for their pollution?

Maybe some extra-terrestrials pollute their planets too.

Image Credit: NASA, ESA et al.
FAQs | Jul 23, 2014

Will the Andromeda galaxy someday collide with our Milky Way?

The Andromeda galaxy is approaching our Milky Way galaxy across the vastness of space. When will they collide?

june-2014-global-temps-cp
Science Wire | Jul 23, 2014

Record high global temp in June 2014 follows record warmth in May

The last below-average global temperature for June was in 1976 and the last below-average global temperature for any month was February 1985.

Image Credit: Arenamontanus
Science Wire | Jul 21, 2014

What exactly is twilight?

Twilight is the time of day between daylight and darkness. Astronomers, the experts on nighttime, recognize three kinds of twilight.

universe-bubble-cp
Science Wire | Jul 18, 2014

Is our universe a bubble?

The multiverse hypothesis – the idea that there are other universes – can be tested, scientists say.

Binoculars are the perfect stargazing tool
Tonight | Jul 17, 2014

Top 6 tips for using ordinary binoculars for stargazing

If you’re a beginning stargazer or a veteran of thousands of starlit nights, binoculars can be your best friend. Here’s how to get started.

Photo credit: Mike Quinn
Science Wire | Jul 17, 2014

How can I see a green flash?

It’s said that once you’ve seen a green flash, you’ll never go wrong in matters of the heart. Here’s all you need to know … plus great pics.

Telstar, via NASA
This Date in Science | Jul 10, 2014

This date in science: First Telstar launch

Telstar was the first satellite able to relay television signals between Europe and North America. It launched on this date … and helped change the world.

Matt Robinson in Sunderland, U.K., saw this wonderful, electric-blue noctilucent clouds on July 7, 2014.  They are sometimes called night-shining clouds.
Today's Image | Jul 10, 2014

Electric blue night-shining clouds

2014 has been a great year for noctilucent, or night-shining, clouds, seen at high latitudes only from about mid-May to August. Wondrous, if you can catch them!

fruit-fly-lab-ISS
Science Wire | Jul 09, 2014

Why are fruit flies boarding the International Space Station?

They’re about to become genetic models for astronauts, to help explore the long-term effects of space flight and deep space travel.