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Temperatures in the Sun's core exceed 10 million degrees Celsius. But how on Earth did we actually come to know that?

Despite the Sun's high core temperatures, particles can't quite overcome their mutual electric repulsion. Good thing for quantum physics!

Some say that the Sun is a green-yellow color, but our human eyes see it as white, or yellow-to-red during sunset. What color is it really?

With a telescope at just the right distance from the Sun, we could use its gravity to enhance and magnify a potentially inhabited planet.

2023 is an exciting time for the study of quark-gluon plasmas.

Across all wavelengths of light, the Sun is brighter than the Moon. Until we went to the highest energies and saw a gamma-ray surprise.

Most of us have heard that the Sun is an ordinary, typical, unremarkable star. But science shows we're actually anything but average.

An annular eclipse is coming to Earth on October 14, 2023. Six months later, a total solar eclipse is headed our way. Here's the reason why.

Sun-like stars live for around 10 billion years, but our Universe is only 13.8 billion years old. So what's the maximum lifetime for a star?

How can you "touch the Sun" if you've always been inside the solar corona, yet will never reach the Sun's photosphere?

Though Sun Tzu’s "The Art of War" is a classic military treatise, its advice applies to all manner of conflict.

Here on Earth, the Sun is our primary source of light, heat, and energy. But it also poses a grave threat to human civilization.

In our Solar System, even the two brightest planets frequently align in our skies. But only rarely is it spectacularly visible from Earth.

Recasting the iconic Carrington Event as just one of many superstorms in Earth’s past, scientists reveal the potential for even more massive eruptions from the sun.

Massive objects like black holes, stars, and rogue planets routinely pass near our Solar System. An ensuing comet storm could destroy us.

Before Constantine received his history-defining vision, a pagan Sun god paved the way for Jesus Christ’s triumphal entry into the Eternal City.

We have less time than you might think.

It's a radical but plausible idea.

The European Space Agency’s Solar Orbiter recently captured images that could help scientists better under the mysterious physics of our Sun.

There are 40 billion billion black holes in the universe. Here’s how our Solar System stacks up against ten of them.

Beware nasty space weather.

As the Earth spins and wobbles on its axis and revolves elliptically around the Sun, each day changes from the last. "24 hours" isn't right.

Plato, Sun Tzu, and Buddha all lived in a "golden age" of philosophy that laid the foundation of modern thought.

Strategy advisor Roger Martin explains how 2,000 year old military thinking is useful in modern business strategy.

Most of us only ever see a fraction of a full rainbow: an arc. But optically, a full rainbow makes a complete circle. Physics explains why.

Newton thought that gravitation would happen instantly, propagating at infinite speeds. Einstein showed otherwise; gravity isn't instant.

Rituals come as much from religion as they do from the way Earth spins around the Sun.

Each year in mid-August, Earth plows through the debris stream of an enormous comet, creating the Perseids. 2023's show will be magnificent!

In just a few seconds, a gamma-ray burst blasts out the same amount of energy that the Sun will radiate throughout its entire life.

A Carrington-magnitude event would kill millions, and cause trillions of dollars in damage. Sadly, it isn't even the worst-case scenario.