NASA’s Mars rover Perseverance: Everything you need to know

The Perseverance rover on Mars as imagined by an artist. NASA/JPL-Caltech This story is part of Welcome to Mars, our series exploring the red planet. NASA’s Perseverance rover hopes to answer our biggest burning question about Mars history: Did the red planet once host life? The dry, dusty Mars we know today was very different […]

What Trump’s Twitter feed looks like

President Donald Trump has been a presence on Twitter.  Getty Images Social media offers you a river of information and updates catered to your tastes and preferences. It’s not unusual to follow people who share your beliefs and political views. But for...