adaptive optics atmospheric blur telescope images

Adaptive optics can sharpen telescope images

Earth’s atmosphere blurs images taken by telescopes. Adaptive optics measures and corrects this distortion, letting telescopes produce images much closer to the sharpness their size should allow.

An axolotl has ten times more DNA than a human

About 10× Human Genome Size

An axolotl’s genome is roughly ten times the size of ours, yet it contains a similar number of protein-coding genes. Much of the difference comes from long stretches of repeated DNA. A bigger genome does not necessarily mean more genes—or a more complicated organism.

D.C. votes for president but lacks a voting lawmaker

Washington, D.C., has three Electoral College votes in elections for president and vice president. Yet residents lack voting representation in Congress, the national legislature.

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adaptive optics atmospheric blur telescope images

Adaptive optics can sharpen telescope images

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