June 10, 2026
A planet bigger than Earth has been found orbiting a small, dim red star called GJ 3378. Scientists used a clever light-dimming trick to spot it, and while there is still a lot to learn, every new world discovered helps us understand just how many planets fill our galaxy.
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June 10, 2026
The nearest star beyond our Sun is called Proxima Centauri, and it is about 4.24 light-years away. That sounds close, but even the fastest spacecraft ever built would take tens of thousands of years to get there. Find out why star distances are so hard to imagine!
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June 8, 2026
Light circles Earth seven times a second — yet still takes years to reach the nearest star. Here's how far 'far' really is in space.
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June 8, 2026
Measure a planet's size and weight, and you can guess what it's made of — rock, water, or gas. Here's the simple trick scientists use.
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June 8, 2026
One small red star hides seven Earth-sized planets, packed closer than Mercury orbits our Sun. Meet TRAPPIST-1 and other famous planet families.
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June 8, 2026
Scientists score how Earth-like a planet is — but the highest scorers might still be furnaces. Here's what 'most Earth-like' really means.
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June 8, 2026
We almost never see exoplanets directly. Here are the two clever tricks scientists use to find hidden planets — the tiny dip and the wobble.
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