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We summarize the week's scientific breakthroughs every Thursday.
- Animals
Tiny crystals give a plain fish twinkling, colorful dots under light
Fishes’ flashing photonic crystals may provide inspiration for ultra-miniaturized sensors that work in a living body.
- Health & Medicine
Frog skin cells turned themselves into living machines
The “xenobots” can swim, navigate tubes, move particles into piles and even heal themselves after injury, a new study reports.
- Astronomy
A new black hole image reveals the behemoth’s magnetic fields
A new analysis of Event Horizon Telescope data from 2017 brings to light the magnetic fields twisted around the black hole at the core of galaxy M87.
- Animals
Cone snail venom may trick mate-seeking worms into becoming meals
Cone snail venom contains worm pheromone mimics, suggesting the chemicals may be used to lure worms during hunting.
- Animals
A sea slug’s detached head can crawl around and grow a whole new body
Chopped-up planarians regrow whole bodies from bits and pieces. But a sea slug head can regrow fancier organs such as hearts.
- Animals
A single male lyrebird can mimic the sound of an entire flock
The Australian birds, already famous for their impressive song-copying skills, appear to be replicating the sounds of a “mobbing flock” of birds.
- Planetary Science
Watch real video of Perseverance’s Mars landing
NASA’s Perseverance rover filmed its own landing on Mars. Here’s that video.
- Tech
A robot arm toting a Venus flytrap can grab delicate objects
By attaching electrodes to the plant’s leaves, researchers found a way to snap its traps shut on command.
- Plants
Rats with poisonous hairdos live surprisingly sociable private lives
Deadly, swaggering rodents purr and snuggle when they’re with mates and young.
- Animals
Brown tree snakes use their tails as lassos to climb wide trees
A never-before-seen climbing technique could inspire the creation of new serpentine robots to navigate difficult terrains.
- Space
How future spacecraft might handle tricky landings on Venus or Europa
Scientists are getting inventive with ways to touch down on these worlds, where landers will face obstacles not seen elsewhere in the solar system.
- Space
Astronomers spotted colliding neutron stars that may have formed a magnetar
Astronomers may have witnessed the formation of a kind of rapidly spinning, extremely magnetized stellar corpse for the first time.
