Mars, Deimos and asteroid

YR4, which orbits the sun every four years and periodically crosses Earth's orbit. The nature of its orbit makes it a ...
The six-mile-wide asteroid punched a one-way ticket toward extinction for all non-avian dinosaurs. Some 66 million years ...
It came from outer space! In the early morning of June 30, 1908, people in the remote Tunguska region of Siberia beheld an ...
Buried "megaripples" — some the size of five-story buildings — are helping scientists piece together the devastation ...
YR4 became the highest-rated asteroid predicted to strike Earth, and although predictions for impact have lowered, not enough ...
Once, a very long time ago, a massive asteroid hit the Earth and wiped out the dinosaurs. In addition to functionally ...
Other “harbingers of doom” in 2025 will include two ‘blood moons,’ a potential fire in the northern sky and a sudden ...
Analysis of samples brought back to Earth from the asteroid Bennu reveal that it has a bizarre chemical make-up and is ...