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A SpaceX rocket seen launching from Cape Canaveral in Florida.

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What you need to know about converting your home to solar
Let us be your guiding light.
Whitson Gordon
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A simple background photo is forcing some Android users to factory reset their smartphones
Don’t use any strange images as your phone background for the moment.
Stan Horaczek

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Dig up any old email in your inbox. Even if it’s in the trash.

Technology

Now is the time to switch to an encrypted communication app

Technology

Meet the dads who can’t quit pinewood derby racing—even after their kids are over it

Head Trip

These two red dots are actually identical. Here’s how

“Somewhere, something incredible is waiting to be known.”

–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?