The Sydney Opera House, Gardens by the Bay in Singapore and the London Eye all briefly cut their lights for the yearly WWF ...

Just one hour at the shore of Lake Karachay would be enough to kill. The radioactive lake, located in the southern Ural Mountains in central Russia, was a dumping ground for nuclear waste from the ...

THE resort Okada Manila joined millions around the world in switching off lights to raise awareness for environmental ...

MANILA, Philippines — The Philippines led all countries during this year's Earth Hour demonstrations with 1.3 million hours saved, nearly half of the collected hours globally. Last March 22 ...

Most tourist attractions are money pits by definition. But some are worse offenders than others -- especially when not worth the cost of admission. Seven attractions top the list as the most ...

From the Lyrid meteor shower in April to the dazzling Geminids in December, you won't want to miss these cosmic light shows ...

Catch the National Cherry Blossom Festival parade and street festival, shop vintage at a ticketed market, or celebrate D.C. Emancipation Day with fireworks.

Sunbird could help spacecrafts reach speeds up to 805,000 kms per hour, which is faster than the Parker Solar Probe, the fastest object ever built.

A British propulsion company is aiming to harness nuclear fusion and drastically cut travel times to far off places in space.