Fewer than 10 of these porpoises are left. Can the species be saved?

The vaquita, found in the northern Gulf of California, is the most endangered marine mammal species in the world. Illegal fishing is to blame.

Mysterious deepwater sharks, killed to make cosmetics, are granted new trade protections in ‘watershed moment’

With their bright green eyes and slender bodies, gulper sharks are odd-looking, prehistoric creatures that have been around for millions of years. Found worldwide in waters from 200 to 1,500 meters ...

Scientists found tryptophan, the ‘sleepy’ amino acid, in an asteroid. Here’s what it means

An essential amino acid that is mistakenly believed to cause drowsiness after eating turkey has been found in an asteroid for the first time, giving scientists clues to the origin of life on Earth.

Where did house cats come from? Ancient DNA shakes up their origin story

A Europe-focused study published in the journal Science examined 87 ancient and modern cat genomes and found that the domestic cat, which has the scientific name Felis catus, originated in North ...

RFK Jr. says he’s following ‘gold standard’ science. Here’s what to know

The message is hammered over and over, in news conferences, hearings and executive orders: President Donald Trump and his health secretary, Robert F. Kennedy Jr., say they want the government to ...
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NASA acting head asks staff to take ‘inspiration’ from DOGE efforts as lawmakers cite Musk’s conflict of interest

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. In a Friday ...
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A rare Archaeopteryx fossil was kept from scientists for decades. Its first-ever analysis reveals ‘one wow after another’

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. When a fossil ...

Are astronomers wrong about dark energy? New study casts doubt on universe’s accelerating expansion

A new study casts doubt on the universe’s accelerating expansion, suggesting dark energy might be weakening over time.
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Scientists explore the anatomy of a ‘zombie volcano’ that’s showing signs of activity

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Can a volcano rise ...
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‘No legitimate rationale’: Lawmakers raise concerns over what NASA won’t say about DOGE

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Some House ...
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These apes can tell when humans don’t know something, study finds

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Some great apes ...
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Blue Ghost lunar lander is documenting its journey to the moon. The views are breathtaking

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The Blue Ghost ...