The dark object has a mass a million times greater than our sun's is located 10 billion light-years away and has no stars.

At around 30 cm (11 in) in length, a species called Epidexipteryx likely takes the cake as the smallest dinosaur in this group. It lived during the Jurassic period in modern-day China and is known for ...

An analysis of hoverfly flight shows that wing design, not faster flapping, enables the smallest species to generate enough ...