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If you go young, blue, and massive, you top out at 50,000 K. That’s peanuts! Surprise! The biggest, most massive stars aren’t always the hottest. Although its neighbor, Messier 42, […]

Spaceguard shows that we can manage risks to the extinction of humanity — if only we put our mind to it.

If tourism is the lifeblood of the Peruvian economy, then Machu Picchu is the heart pumping that blood — in sickness and in health.

Our Universe requires dark matter in order to make sense of things, astrophysically. Could massive photons do the trick?

Today, the F-word is enjoying a renaissance the likes of which it hasn’t seen since, well, the Renaissance.

The James Webb Space Telescope finally could answer the age-old question of whether we are alone in the universe.

Einstein’s “happiest thought” led to General Relativity’s formulation. Would a different profound insight have led us forever astray?

And why, even at its faintest, it always outshines every other star and planet. If you’ve been looking to the west after sunset recently, you may have noticed that there’s one […]

After 100 million nights of people asking, “What are those twinkly lights?” it is pretty remarkable that we happen to live in one of the first generations that actually knows the answer.

Earth is actively broadcasting and actively searching for intelligent civilizations. But could our technology even detect ourselves?

The tech world’s fixation on artificial intelligence has spawned beliefs and rituals that resemble religion — complete with digital deities, moral codes, and threats of damnation.

Nothing can escape from a black hole. So where do Hawking radiation, relativistic jets, and X-ray emissions around black holes come from?

If our nearest star has an Earth-like planet, here’s how we’ll see it. As seen from up close, the signs of not only life, but our intelligent, technologically advanced human civilization […]

Do the health risks outweigh the benefits?

The most unique interloper into our Solar System has a natural explanation that fits perfectly — no aliens required.

Astronomers possibly solve the mystery of how the enormous Oort cloud, with over 100 billion comet-like objects, was formed.

If you think of the Big Bang as an explosion, we can trace it back to a single point-of-origin. But what if it happened everywhere at once?

With launch, deployment, calibration, and science operations about to commence, here are 10 facts that are absolutely true.

It may seem as though top performers are always on, but the secret to their success is taking the time to recharge.

If dark matter exists in a large halo in our galaxy, made up of particles, then it’s passing through us constantly. But how much?

Astronomers used supercomputers and an international network of antennas to create the stunning map.

9 minutes of cruel history may cure the anti-progress delusion.

Big Think Business columnist Eric Markowitz prefaces his new series on long-term thinking with the experience that almost cut his life short.

The Universe gravitates so that normal matter and General Relativity alone can’t explain it. Here’s why dark matter beats modified gravity.

Based on the atoms that they’re made out of, the innermost planet should always be the densest. Here’s why Earth beats Mercury, hands down.

Psychologists are finding that moral code violations can leave an enduring mark — and may require new types of therapy.

Astronomy’s roots rest in the very origins of humanity. We have always looked to the skies for answers. We are starting to get them.

The boiling new world, which zips around its star at ultraclose range, is among the lightest exoplanets found to date.

Astronomers find a third type of supernova and explain a mystery from 1054 AD.

A researcher explains a little-known niche within modern physics: animal collective behavior.