SCIENCE

By tracking eye movements in zebrafish, researchers identified four different types of sleep, analogous to the complex sleep patterns of humans and other animals.By tracking eye movements in zebrafish, researchers identified four different types of sleep, analogous to the complex sleep patterns of humans and other animals. Read More

The types of Ebola and hantavirus panicking officials are very different from the species identified decades ago, raising new questions about how to respond.The types of Ebola and hantavirus panicking officials are very different from the species identified decades ago, raising new questions about how to respond. Read More

For a split second, a fireball outshone the rivers of molten lava flowing from the Philippines’ most active volcano.For a split second, a fireball outshone the rivers of molten lava flowing from the Philippines’ most active volcano. Read More

Companies say it’s a better way to dispose of the Cold War-era material — and fix a shortage of nuclear fuel. But the plan has also faced criticism.Companies say it’s a better way to dispose of the Cold War-era material — and fix a shortage of nuclear fuel. But the plan has also faced criticism. Read

Lenacapavir, which protects people from H.I.V. infection with twice-yearly shots, is arriving in a country where the health system has been hollowed out by American aid cuts.Lenacapavir, which protects people from H.I.V. infection with twice-yearly shots, is arriving in a country where the health system has been hollowed out by American aid cuts. Read More

On Aug. 12, parts of Greenland, Iceland, Spain and Portugal will experience the thrill of daytime darkness. Here’s where you can witness the cosmic spectacle.On Aug. 12, parts of Greenland, Iceland, Spain and Portugal will experience the thrill of daytime darkness. Here’s where you can witness the cosmic spectacle. Read More

While global warming is still a threat, the decision to back away from a worst-case outlook raises questions about whether some risks have been overstated.While global warming is still a threat, the decision to back away from a worst-case outlook raises questions about whether some risks have been overstated. Read More

Evacuation orders remained in place for more than 40,000 residents around Garden Grove, Calif., the location of an industrial site containing an unstable tank of toxic chemical.Evacuation orders remained in place for more than 40,000 residents around Garden Grove, Calif., the location of an industrial site containing an unstable tank of toxic chemical. Read More

A single infusion of an experimental gene-editing drug seemed to reduce LDL long-term in a small trial. The results may point to something “curative,” one expert said.A single infusion of an experimental gene-editing drug seemed to reduce LDL long-term in a small trial. The results may point to something “curative,” one expert said. Read More

Jellyfish myths and misconceptions abound. Here’s how to stay safe this beach season around these gelatinous wonders.Jellyfish myths and misconceptions abound. Here’s how to stay safe this beach season around these gelatinous wonders. Read More