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When what we predict and what we measure don’t add up, that’s a sign there’s something new to learn. Could it be a new fundamental force?

Although the Big Bang occurred at an instant in time long ago, we still see the light from it. Will the evidence ever disappear completely?

65 million years ago, an asteroid strike caused the 5th great mass extinction. Could we save Earth, today, from a similar event?

The Copernican principle states that Earth is an ordinary planet, but that does not mean that life is ordinary in the universe.

Everything we observe beyond our Local Group is speeding away from us, omnidirectionally. If the Universe is expanding, where is the center?

When stars form, they emit energetic radiation that boils gas away. But it can’t stop gravitational collapse from making even newer stars.

There are ~400 billion stars in the Milky Way, and ~2 trillion galaxies in the visible Universe. But what if we aren’t typical?

The “first cause” problem may forever remain unsolved, as it doesn’t fit with the way we do science.

Signals from across the universe point toward a fascinating possibility.

Atomic clocks keep time accurately to within 1 second every 33 billion years. Nuclear clocks could blow them all away.

“The pulsar sort of consumes the thing that recycled it, just as the spider eats its mate.”

The Earth that exists today wasn’t formed simultaneously with the Sun and the other planets. In some ways, we’re quite a latecomer.

A new artificial intelligence method removes the effect of gravity on cosmic images, showing the real shapes of distant galaxies.

When you measure not just light, but light’s polarization, you learn so much more. It’s been over 100 years since the first solution for a black hole was discovered in General […]

Not only does this give us a look at the scaffolding of the universe, we found some new galaxies too!

Leading a scientific revolution is easy: you just have to succeed where the current theory fails while equaling its successes. Good luck!

When three wise men gifted baby Jesus with gold, frankincense, and myrrh, they had no idea one was made from colliding neutron stars.

Previously, only the brightest and most active galaxies could pierce the obscuring wall of cosmic dust. At last, normal galaxies break through.

Back during the hot Big Bang, it wasn’t just charged particles and photons that were created, but also neutrinos. Where are they now?

Achieving values and pursuing growth is the real secret to a fulfilled life.

Where did the “seed” magnetic field come from in the first place?

Researchers discovered a galactic wind from a supermassive black hole that sheds light on the evolution of galaxies.

When the Universe was first born, the ingredients necessary for life were nowhere to be found. Only our “lucky stars” enabled our existence.

And a combination of all three might take us farther than ever. If you want to see the farthest objects in the Universe, you have to know not only where to […]

The giant impact theory suggests our Moon was formed from proto-Earth getting a Mars-sized strike. An exoplanet system shows it’s plausible.

In 1920, astronomers debated the nature of the Universe. The results were meaningless until years later, when the key evidence arrived.

If we were born trillions of years in the future, could we even figure out our cosmic history?

All forms of energy affect the expanding Universe. But if matter and radiation slow the expansion down, how does dark energy speed it up?

The successor to Hubble is almost ready for launch. It’s really coming this year, too! NASA’s James Webb Space Telescope, originally proposed in the 1990s, is finally slated to launch later […]

JWST has brought us more distant views of the early Universe than ever before. Is the Big Bang, and all of modern cosmology, in trouble?