Aaron Rodgers tells NBC he targets a mid-December return from torn Achilles tendon

Extreme 'Black Widow' Pulsar Detected Just 3,000 Light-Years Away

Authorities Investigate Mass Deaths of Sea Life Off The Coast of RussiaA Sustainable, Poverty-Free Future Is Possible For All Humanity, Study Reveals

New Study Reveals Global Warming Is Affecting Night-Time Temperatures DifferentlyMelting Antarctic Snow Is Revealing The Preserved Remains of 800-Year-Old PenguinsScientists: Greenland's Ice Loss This Century on Track to Be Worst in 12,000 Years

Newly Created Mutant Enzyme Hybrid Is Six Times Better at Devouring PlasticPhenomenon Shrinking Arctic Forests Linked to Legacy of Russia's Most Polluted City

The Ocean Is Becoming More Stable, And The Consequences May Be Dire, Scientists Warn

Wildfires Rip Through California, Forcing Tens of Thousands to Flee And EvacuateIn a Wild Twist, Physicists Have Revived an Alternative Theory of Gravity

A Spacecraft Just Recorded The Lunar Eclipse Like You've Never Witnessed It BeforeThe Largest Asteroid to Go Past Earth This Year Is Coming Our Way Right Now

Scientists Think They Know What Causes Mars's Planet-Encompassing Dust StormsHubble Peers Through The Mysterious Shells of This Gigantic Elliptical Galaxy