All Stories
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Planetary ScienceHayabusa2 has blasted the surface of asteroid Ryugu to make a crater
Japan’s Hayabusa2 spacecraft shot a projectile at Ryugu. Next: collecting asteroid dust from the probable impact crater left behind.
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Health & MedicineTesting mosquito pee could help track the spread of diseases
A new way to monitor the viruses that wild mosquitoes are spreading passes its first outdoor test.
By Susan Milius -
Life50 years ago, scientists were unlocking the secrets of bacteria-infecting viruses
In 1969, a bacteria-infecting virus held promise for unlocking the secrets of viral replication. Fifty years later, the virus is a versatile tool for scientists.
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LifeHow emus and ostriches lost the ability to fly
Changes in regulatory DNA, rather than mutations to genes themselves, grounded some birds, a study finds.
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AstronomyThis planetary remnant somehow survived the death of its sun
A small, sturdy piece of planet survived the collapse of its sun and now orbits the dead star.
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AnimalsCats recognize their own names
A new study suggests that cats can tell their names apart from other spoken words.
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PlantsA major crop pest can make tomato plants lie to their neighbors
Insects called silverleaf whiteflies exploit tomatoes’ ability to detect damage caused to nearby plants.
By Susan Milius -
Planetary ScienceMetal asteroids may have once had iron-spewing volcanoes
Two groups of scientists introduce the idea of “ferrovolcanism,” or iron volcanoes, that could have occurred on metal asteroids like Psyche.
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Science & SocietyThis Greek philosopher had the right idea, just too few elements
The ancient Greek philosopher Empedocles wrongly believed matter to consist of just four elements, but he grasped the basic idea of forces governing unchanging matter.
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PsychologyWhat we know and don’t know about how mass trauma affects mental health
Three people connected to mass shootings have recently killed themselves. Here’s what we know, and don’t, about the lingering effects of mass trauma.
By Sujata Gupta -
AnimalsTiny pumpkin toadlets have glowing bony plates on their backs
Pumpkin toadlets are the first frogs found to have fluorescent bony plates that are visible through their skin under ultraviolet light.
By Jeremy Rehm -
PaleontologyNew fossils may capture the minutes after the dinosaur-killing asteroid impact
North Dakota fossils may depict the aftermath of the dinosaur-killing asteroid, but controversial claims about the breadth of the find are unproven.