He testified on behalf of George Floyd's killer. Now his decisions as Maryland medical examiner are being reviewed.

Do Brain Training Games Actually Do Anything? Here's The Science

An Asteroid Will Get Closer to Earth Than The Moon This Thursday, But Don't PanicFor The First Time, an 'Ultra-Hot Neptune' Has Been Discovered Orbiting a Sun-Like Star

Here Are The Detailed And Risky Steps NASA Needs to Take to Land on The Moon by 2024The Space Station Had to Make Emergency Maneuvers to Dodge an Object TodayAstronomers Discover 'Pi Earth' Exoplanet Orbits Its Star Once Every 3.14 Days

Earth Is About to Capture a Minimoon, But There's Something Odd About This OneA Strange, Glowing Ultraviolet Aurora Has Just Been Detected Around a Comet

Breathtaking Images Suggest There's Fresh Ice on One of Saturn's Moons

Scientist Shows There Are Two Ways to Measure a Day on Earth – We Use The Longer OneThe Perseid Meteor Shower Is Peaking This Week – Here's How to Watch

"Glowing" Water Atmosphere Detected on an Exoplanet For The First TimeAstronauts Can See 'Super Typhoon' Noru From Space, And Their Photos Are Incredible

Scientists Just Revealed a Hidden Secret About The Sun's Inner CoreAn Asteroid Headed Our Way Is About to Test NASA's Planetary Defence System