Mars is smaller and less geologically active than Earth.
Internet dating is very popular in the U.S.
It is just one step to smarter clothing.
Plastics can remain in the environment for hundreds of years.
Facebook removes material that violates the rules.
The single fossil finger bone of Homo sapiens.
It is impossible for farmers to keep up with the activities of each cow individually.
A group of scientists in Israel are researching how to help paralyzed people walk again.
He opened the conference by linking scientific progress to Africa’s development at large.
Facebook says it will begin informing users as to whether their personal data may have been wrongly shared with a British research company.