Since the solar system formed over 4.5 billion years ago, planets and other objects have been subject to constant change due to heating from the Sun. But a new model developed by researchers from ...

Long before modern observatories and spacecraft, court scribes in ancient China were quietly building one of humanity’s first datasets on the changing sky. Their terse notes on sudden daylight ...

Astrophysicists are mapping a vast, hidden structure in the gas around the Sun that behaves like a tunnel carved through ...