Physicists Have Argued Over This Problem Since 1883. It May Now Be Solved.

3.5-million-year-old mystery creature found in Japan is a 'giant' never seen before

A 3.5-million-year-old fossil discovered in Japan has revealed a previously unknown species of giant salamander.

A massive crater was spotted on Google Earth. It could be a scar from an ancient meteorite impact

Monday briefing: 50 years after Viking landed on Mars, did Nasa overlook evidence of life?

SpaceX will launch a satellite repair drone with robot arms to Earth orbit today: How to watch it live

SpaceX is launching a Northrop Grumman robotic servicing satellite today, featuring two arms designed for orbital repairs.

Rates of passerine body plan evolution in time and space

AI analysis of passerine birds suggests species evolve in rapid, explosive bursts potentially fueled by climate shifts.

136°C difference: Amid extreme heat, Earth records its coldest temperature

Earth has recorded a 136°C temperature gap between its hottest and coldest locations amid a period of extreme heat.