A new study casts doubt on the universe’s accelerating expansion, suggesting dark energy might be weakening over time.
Our Solar System orbits the galactic center at an estimated 792,000 kilometers per hour, taking 225 million Earth years to ...
A team of international physicists has delivered a striking challenge to one of the most provocative ideas in modern science: ...
Physicists explore whether the universe hides extra dimensions. These tiny, curled-up or warped dimensions could explain ...
The story opens with a scene both familiar and deceptively simple: physicists once again interrogating the fabric of reality, ...
That's the case for a galaxy described in a new paper by PhD student Sijia Cai of Tsinghua University's Department of ...
In a cafe at CERN in 1992, three physicists realized they disagreed about how many constants are needed to describe all of nature. A recent paper suggests only one – time – is necessary.
The universe is looking younger every day, it seems. New calculations suggest the universe could be a couple billion years younger than scientists now estimate, and even younger than suggested by two ...