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LATEST NEWS

Masks help prevent the spread of the coronavirus—here’s a breakdown of how effective they are
Essential bike maintenance tips everyone should know
Hubble just captured this ‘fluffy’ galaxy in all its flocculent glory
Mexico City buried its river and lakes to prevent disease. But then COVID-19 happened.
What animal do you see in this image of a nebula?
This pocket-sized shaggy reptile hopped around a pre-dino world
A lopsided pair of dead stars could reveal some of the universe’s secrets
Canon’s new 8K-shooting EOS R5 is the most powerful mirrorless camera yet
These survival tips might actually get you killed

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–Carl Sagan

Videos


This week on Test Dummy, Jess takes the Theragun G3PRO for a spin. The percussive therapy device claims to improve muscle strength, flexibility and performance—but does it deliver? Teaming up with Associate Editor Claire Maldarelli—a seasoned marathon runner in training season—Jess digs into peer-reviewed research and speaks with experts to find the truth. 


Over the last 20 years, 2°C has been referenced in climate policies and agreements made by the Council of the European Union, the G8 (now the G7), and more. So what makes two degrees so important?