Space tourists are participants in a crafted, symbolic journey that reflects how commercial spaceflight is redefining what it ...

Most people have never heard of vacuum decay, but if it happened it would be the biggest natural disaster in the universe. If ...

The speed of light is the fastest anything can travel. What happens to a photon from a galaxy 25 million light years away on ...

The current theory of how the Universe came into being can't explain the existence of the planets, stars and galaxies we see ...

Aisha Bowe, Amanda Nguyễn, Gayle King, Katy Perry, Kerianne Flynn and Lauren Sánchez—on a suborbital journey to the edge of ...

Scientists say they have figured out the universe’s ‘death date’, when everything we see in the night sky will disappear ...

In Doctor Who season 2 episode 6, The Interstellar Song Contest, the Doctor's quest to get Belinda back home to Earth leads ...

If the expansion of the universe was accelerating, though, it was as though something was actively stretching space out from within, over and above the residual expansion from the big bang.

The 50-plus-year-old spacecraft was trapped in Earth orbit for decades. Now, it has likely fallen back home, according to the ...

Researchers suggest powerful bursts from magnetars—collapsed stars with strong magnetic fields—may have contributed up to 10 ...

Scientists have found that explosions in highly magnetised neutron stars, called magnetars, could have created gold in the universe. Analysis of archival data from space missions shows that a ...