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This is the heart of the Fermi Paradox, a term for the profound conflict between the sheer statistical probability that we should be surrounded by evidence of intelligent life and the observed reality of a silent, seemingly empty cosmos. For decades, our telescopes and radio receivers have heard nothing but silence.

When you look up at the night sky, the stars that catch your eye are often giants—luminous, massive beacons similar to, or much larger than, our own Sun. It’s natural to think of these bright points of light as typical. But this perception is a profound illusion.

Despite eons of gazing at the "Man in the Moon," many of us miss the fact that our celestial neighbor is still under construction. While the massive, basin-forming impacts ended billions of years ago, the Moon is still struck by asteroids and comets today. Catching these impacts is a challenge, but thanks to the Lunar Reconnaissance Orbiter Camera (LROC), we can now spot fresh craters that appeared almost overnight.

As the threat from space debris becomes a daily concern for satellite operators, the European Space Agency is developing innovative technologies to keep our orbits safe. At the Izaña station in Spain, ESA's Izaña-1 and Izaña-2 laser-ranging stations are testing a high-precision method to track debris, prevent collisions, and eventually, even nudge junk out of the way.

When an object from another star system visits ours, astronomers race to learn its secrets. But sometimes, the first clues are found not by looking forward, but by looking back. A new study reveals that the Transiting Exoplanet Survey Satellite (TESS)—a telescope designed to find planets around other stars—had captured images of our newest interstellar visitor, 3I/ATLAS, as far back as May 2025. Unearthing this "pre-discovery" data required a clever technique to find a faint,

From strange bright lights flanking the sun to rainbow-like halos seen from an airplane, Earth's atmosphere creates a stunning variety of optical displays. These phenomena are more than just beautiful—they are scientific clues, telling us about the properties of atmospheric particles. A recent paper suggests we can use this same science to decode the atmospheres of planets far beyond our solar system.

When our sun runs out of fuel, it will swell into a red giant before collapsing into a tiny, dense white dwarf. This cataclysm is often seen as the end of our solar system, but it may actually be the beginning of a new phase of life. Astronomers are now seriously considering whether planets orbiting these stellar remnants could retain their oceans and support life, potentially making the galaxy's 10 billion white dwarfs promising targets in the search for extraterrestrial bio

Earth is a vibrant, water-rich world, but it didn't start that way. Formed in the hot, inner solar system, the early proto-Earth was a dry, rocky planet, devoid of the volatile elements essential for life. So how did it become the habitable oasis we know today? A new study reveals that our planet's chemical makeup was set surprisingly fast, and that its life-giving properties are likely thanks to a later, cataclysmic event.

The Moon is thought to have formed from a homogenous magma ocean, yet its two sides are drastically different. Toggle between the two faces to see the dichotomy.

You know, if you think about it, and trust me we're about to, the moon is kind of weird. Of all the terrestrial worlds of the solar system, we're the only one with a substantial natural satellite. Mercury and Venus have nothing. And while Mars technically has two moons, they're really just captured asteroids and don't really count. Sorry Phobos and Deimos, but that's the way it is.

As NASA's Artemis program aims to establish a long-term human presence on the Moon, one of the greatest challenges is finding a reliable power source. A recent study from the Republic of Korea explores how Thermoelectric Generators (TEGs) could be uniquely suited to the task, not just by surviving the Moon's harsh conditions, but by harnessing them.

A set of instruments shut off in 1978 are still producing useful results: the seismometers left by the Apollo missions. At first, they proved the Moon has "moonquakes." Decades later, as our analysis techniques improved, we squeezed more information from that same old data. By tracking how vibrations travel through the Moon, we finally found definitive evidence of its core.