C. P. Ewing
The science of red skies can also help us understand how stars form.
Lasers being shone from the European Southern Observatory’s Very Large Telescope in Chile.
These lasers help remove the twinkles in the night sky and help astronomers see stars clearer on Earth than ever before.
How exactly do the stars twinkle in the night sky? As it turns out, the answer is full of hot air... and cold air.
The rainfall from Harvey has now exceeded the amount from the previous record-bearer, Tropical Storm Amelia in 1978.
AP Photo/Charlie Riedel
An expert in extreme weather events explains why the rain – and thus flooding – associated with Hurricane Harvey has been 'unprecedented.'
Hiscox and students practice for the big day with a weather balloon.
Meteorology researchers across the country are prepping experiments for the mini-night the eclipse will bring on August 21 – two minutes and 36 seconds without the sun in the middle of the day.
A Boreal Shield lake in Algonquin Park, Ontario.
Canadians love to paddle on them and camp beside them, but our boreal lakes offer more than just peace and beauty. They could provide clues to how life on Earth began.
Captain, we’re being pummeled by cosmic rays!
muratart via Shutterstock.com
The true radiation risk from commercial flying has nothing to do with security scans. A radiation expert explains how much cancer risk the most frequent of flyers take on when they take to the skies.
Tiny CubeSats are ready to be our eyes in the skies.
Earth Background: NASA; HARP Spacecraft: SDL; Montage: Martins, UMBC
As technology advances, tiny satellites no bigger than a loaf of bread have advanced from just proving they work to being big contributors in answering science questions.
Mysterious gas giant is about 1,000 light years away.
Mark Garlick/University of Warwick.
Ruby and sapphire clouds may be hovering over exoplanet HAT-P-7b.
Nighttime panorama showing Pakistan’s Indus River valley, taken from space. The green band above the horizon is airglow.
NASA Earth Observatory
Here's how to tell airglow from northern lights.
CSIRO’s Birdsville station is one of several in Australia that monitors aerosols in our skies.
A leading NASA scientist has asked CSIRO to stay in its global network that monitors atmospheric dust and pollution. The data are vital to understand the effects on weather and climate.
Those tiny streaks sometimes land, and they can tell us a lot about the sky.
Hunting for meteorites in the vast Pilbara is hard work, but even a tiny speck can tell us a great deal about the sky billions of years ago.
Million-year-old ice likely lies more than 3km below Antarctica’s surface.
Tas van Ommen
Ice cores tell us vital information about how the world's climate has changed - and how it will change in the future.
On February 29, night suddenly becomes day.
Was it a UFO? Was it a high-tech plane? Here's what lucky people really saw over Scotland on February 29.