In the new study, the researchers proposed that the timing of human origins can be explained ... the atmospheres of planets outside our solar system for biosignatures, like the presence of oxygen.

Feb. 12 (UPI) --A 14-year-old "human calculator" from India put his mental math to the test and broke six Guinness World Records in a single day. Aaryan Shukla, 14, of Maharashtra, set his first ...