Galileo Galilei championed the heliocentric model of the solar system and advanced modern astronomy with telescopic ...

The journey of astronomical telescopes began in the early 17th century when Galileo Galilei crafted his first refracting ...

A new study suggests that the explosive deaths of the universe's earliest stars created surprising quantities of water that ...

By Marc Santora and Helene Cooper Rupert Murdoch’s News Group Newspapers offered Harry an “unequivocal apology,” admitting for the first time to “unlawful” activities at The Sun and ...

Trump Asserts a Muscular Vision of Presidential Power as He Takes Over In a flurry of executive actions, President Trump revived disputed claims of broad presidential authority from his first term ...