A supernova lit up Earth’s sky in 1054 and was visible in daylight. Hubble now shows its glowing remains are still expanding nearly 1,000 years later

Astronomers used the Hubble Space Telescope to measure the expanding Crab Nebula. New images compared with older ones show ...

Japan introduced black bass in 1925 to improve sport fishing, but scientists now say the invasive predators transformed Lake Biwa and drove native fish into de…

For almost a hundred years now, the tranquil lakes of Japan have been reflecting an under-the-surface drama involving biology ...