Earth" planet named HD 20794 d, located 20 light-years away, which could have conditions suitable for life.
Extraordinary heat from a future supercontinent formation could lead to a mass extinction of mammals, including humans, in ...
Would dropping every nuke or climate change make our home a barren, sterile world? Probably not, but we're trying ...
NASA announced Wednesday that the odds of the up to 300-foot-wide asteroid hitting Earth dropped from record highs. See where ...
As Earth approaches warmer levels experienced earlier in its geologic history, it may be bad news for human survival.
The threat from space rock 2024 YR4 has surpassed that of Apophis, an asteroid feared by scientists 20 years ago. The danger ...
Gamma rays detected by NASA's Fermi spacecraft indicate that microquasars are powered by small black holes slowly devouring ...
The sun periodically ejects huge bubbles of plasma from its surface that contain an intense magnetic field. These events are ...