A new study casts doubt on the universe’s accelerating expansion, suggesting dark energy might be weakening over time.

Space looks very dark from Earth. But does the solar system, and the universe for that matter, have an area that's the ...

What we see in our universe only accounts for roughly five per cent of what’s out there. The remaining 95 per cent is invisible. But now, a researcher at the University of Tokyo says he's seen at ...

In recent decades, we've learned huge amounts about the universe and its history. The rapidly developing technology of telescopes—both on Earth and in space—has been a key part of this process, and ...

"Challenging long-held assumptions is essential to scientific progress." A team of scientists is proposing a bold alternative to the Big Bang theory, suggesting that our universe may have formed ...

One of astronomy's biggest puzzles may have been solved by a new theory that suggests the universe may rotate at an extremely slow rate. Current models suggest the universe is expanding evenly in all ...

Astronomy magazine's 50-year history chronicles significant advancements in our understanding of the outer solar system, including the reclassification of Pluto as a dwarf planet and the ongoing ...

Highlighting 10 major astronomical milestones of the past century in celebration of the Royal Greenwich Observatory’s 350th anniversary Founded in 1675 by King Charles II, the Royal Observatory ...