Paul Sutter

The inflationary epoch that caused our universe to rapidly expand in its earliest moments may be connected to the modern era of dark energy.

The current definition of habitable zone only examines the amount of sunlight reaching a planet. It may be time to question that definition.

Over the decades, the Big Bang theory has taken on some pretty heavy challengers. Let's explore those alternatives and why they didn't work.

Did the graviton, the quantum mechanical force carrier of gravity, flood the cosmos with dark matter before normal matter even had a chance to get started?

It may be possible to build a real, traversable wormhole, but only if our universe has extra dimensions, a team of physicists has found.

A mirror universe that runs backward in time sprouted up before the Big Bang.

The fine-structure constant is a seemingly random number with no units or dimensions, which has cropped up in so many places in physics, and seems to control one of the most fundamental interactions in the universe.

A seemingly intractable black hole paradox first proposed by physicist Stephen Hawking could finally be resolved — by wormholes through space-time.

Ceres is the most dominant member of the asteroid belt but it doesn't look like the other asteroids.

The origins of the Lagrange points are sunk deep within one of the most difficult problems faced by mathematicians and physicists over the past 400 years: the three-body problem.

If you've ever been stuck in a nightmare traffic jam, you know that "black hole from which you can never escape" captures the feeling well.

Globular clusters are like astronomical coelacanths — mysterious living fossils. These densely packed collections of ancient stars may hold the ultimate secrets to the formation of galaxies.

A recent study has found that the hazards posed by large impactors far outweighed their benefits for life on Earth.

Scientists used a 200-ton "neutrino scale" to measure the elusive particles.

Quantum mechanics tells us that the forces of nature come in discrete, tiny chunks. Gravity, the bending of space-time, is a force. So is space-time quantized as well?

Toxic hydrogen cyanide gas, used in chemical weapons today, may have been involved in the early stages of life's evolution, a new study suggests.

The Higgs boson particle could have kept our universe from collapsing within a larger multiverse, physicists say.

Astronomers have proposed lots of ideas to explain 'Oumuamua's odd characteristics, and we're unlikely ever to find out which one is correct.

Knowing if high-energy neutrinos and FRBs came from the same place on the sky would help explain the origins of both. But alas, they do not.

Does the simulation hypothesis offer a compelling argument, or is it just interesting food for thought? Let's find out.