Winter solstice: Northern Hemisphere's shortest day and longest night over 1 year

US updates science, technology pact with China over 1 year

New Zealand scientists suspect specimen of world's rarest whale died from head injuries over 1 year

The dark energy pushing our universe apart may not be what it seems over 1 year

Small meteor lights up Philippine sky almost 2 years

Spacecraft flies closer to Mercury than planned after thruster glitch almost 2 years

S. Korea space transport ambitions hopes to challenge SpaceX almost 2 years

Newborn rattlesnakes at Colorado 'mega den' make live debut almost 2 years