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Like Mars today, Venus used to be a sci-fi superstar. Recent discoveries could re-ignite our interest in Earth’s “evil twin.”

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

Even at its faintest, Venus always outshines every other star and planet that's visible from Earth, and then some!

Until recently, we were only able to view Venus's surface with radar or by landing on the planet. It was believed that Venus's surface was entirely obscured by clouds; NASA's Parker Solar Probe proved otherwise.

Venus Life Finder could launch as early as 2023.

Earth is the Solar System's only known inhabited planet. Could Venus, if its phosphine signal is real, be our second world with life?

Mercury, Venus, and Mars are all uni-plate planets, and may always have been. Here's what's known about why Earth, uniquely, has plate tectonics.

Anesthesia causes animals and humans to lose consciousness. A study found it has a similar effect on Venus flytraps.

Despite being the closest planet to the Sun, Mercury "only" reaches 800 °F at its hottest. Venus is always hotter, even at night.

In the night sky for March of 2022, only stars and the Moon, not planets, will greet you. The real show, however, arrives just before dawn.

Venus has far more carbon dioxide in its atmosphere than Earth, which turned our sister planet into an inferno. But how did it get there?

Even the French got upset.

There's an extremely good chance that there is, or at least was, life on Mars. But is it native to Mars, or did it originate from Earth?

If you had a clear western horizon, you had your shot at this view! On September 9, 2021, the Moon and Venus nearly overlapped. A simulated view of the post-sunset skies […]

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 […]

No planet enters retrograde more frequently than Mercury, which does so 3-4 times each year. Here’s the scientific explanation for why.

Mars, the red planet, was a world we knew almost nothing about until our first spacecraft visited it. In just ~50 years, how far we've come!

The largest hazardous asteroid found in the last 8 years showcases a little-known class of planet-killers. And we're woefully unprepared.

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.

All across the Universe, planets come in a wide variety of sizes, masses, compositions, and temperatures. And most have rain and snow.

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.

While Mars is known as a frozen, red planet today, it has all the evidence we could ask for of a watery past, lasting for approximately the first 1.5 billion […]

Do you think you know the Solar System? Here's a fact about each planet that might surprise you when you see it!

The Source Family, a radical 1970s utopian commune, still impacts what we eat today.

The cycles of life all rely on the dynamism of the Earth's crust.

Plants are very sensitive to touch, with research showing that touching a plant can change its genome and launch a cascade of plant hormones.

If there are human-sized creatures walking around on other planets, would we be able to view them directly?

From the tablets of the Babylonians to the telescopes of modern science, humans have always looked to the skies for fundamental answers.

Nikolaas Tinbergen's concept of "supernormal stimulus" explains why humans are attracted to a heightened version of reality.

Astrophysicist Michelle Thaller explains how a solar storm could wipe out civilization… and what we can do to prevent catastrophe.