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The Latest Breaking News from LiveScience

What counts as 'close contact'? Why the risk of hantavirus transmission is tricky to define

Health officials have said the Andes virus implicated in the cruise ship outbreak spreads via "close contact." Live Science spoke to experts about what that means.

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Science news this week: PCOS has a new name, Neanderthals were the world's oldest dentists, and the first nuclear bomb explosion spawned an 'alien' crystal

May 16, 2026: Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend.

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Newly discovered, blue-whale-size asteroid will fly super close to Earth today — and you can watch it live

Newly spotted asteroid 2026 JH2, which could be up to 115 feet wide, will fly past Earth closer than some satellites on Monday (May 18). The close approach will be visible to stargazers and can be viewed via livestream.

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'The biggest El Niño event since the 1870s': 'Super' El Niño is now the most likely scenario by the end of this year ‪—‬ and the humanitarian cost could be huge

A "very strong" El Niño is now the most probable scenario for the October-to-February period.

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Antarctica’s sudden sea ice loss is one of the most extreme and confusing events in the modern climate record. Scientists now know why it's happening.

In 2015, after decades of relative stability, Antarctica's sea ice suddenly began to disappear. Sea ice extent reached a record low in 2023, and scientists have now figured out what happened in that period.

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Don Juan Pond: Antarctica's salty, syrupy lake that never freezes, even when it's minus 58 F

Don Juan Pond is a mysterious lake in Antarctica that contains so much calcium chloride, it doesn't freeze in subzero temperatures.

LiveScience

'I heard gasps' and 'oh my God': Artemis II astronauts reveal inside story of their mind-bending solar eclipse

In their first visit to Canada since returning to Earth, the Artemis II astronauts opened up about the moments that blew their minds — and brought them to tears.

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'There are 4 people in those pixels': Earth-based telescope snapped Artemis II crew orbiting the moon

A blurry new photo captured by the Green Bank Telescope in West Virginia shows Artemis II's Orion capsule circling the moon more than 200,000 miles away, making it a candidate for the longest-distance image of humans ever taken from Earth.

LiveScience

A pill can stop people from developing COVID after being exposed to the virus, trial finds

A pill called ensitrelvir is the first drug shown to effectively reduce infection after exposure to SARS-CoV-2.

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High-status Roman woman was buried in a lead coffin with jet hairpins and exotic resins, archaeologists find

A burial of an elite Roman-era woman who appears to have been buried with exotic resins has been discovered in Colchester.

LiveScience

'Extreme' crystal that formed in 1945 nuclear bomb test is unlike anything scientists have seen

Samples of "trinitite" created during the world’s first nuclear bomb test in 1945 contain unique crystals never seen before.

LiveScience

SpaceX prepares to launch next-generation Starship, the tallest and most powerful rocket ever built

Starship V3's maiden spaceflight is scheduled for next week as SpaceX prepares to launch the tallest and most powerful rocket ever built.

LiveScience

'Exceptional' drilled tooth reveals Neanderthals practiced dentistry in Siberia 60,000 years ago

A hole found in a 60,000-year-old Neanderthal tooth was likely made by a stone drill, making the discovery the oldest evidence of intentional dentistry to date.

LiveScience

The Milky Way ate a galaxy called Loki, and scientists think they found its bones

Astronomers have identified a group of ancient stars that may be the remnants of a dwarf galaxy named Loki that merged with the Milky Way more than 10 billion years ago.

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Homo erectus genetic material sequenced for the first time, and it shows 'deep genetic links' with modern humans

A new study of six Homo erectus individuals from China reveals one amino acid variant that distinguished this archaic human from all other human lineages and one that it passed on to modern humans via Denisovans.

LiveScience

Diagnostic dilemma: An infant's brown eyes turned indigo after COVID antiviral treatment

In a visually striking medical case, a baby's eyes changed color while he was receiving care in a hospital.

LiveScience

Physicists find evidence that the universe isn't perfectly uniform — potentially unraveling a 100-year-old model of cosmology

The universe may not be perfectly uniform after all, a new series of papers hints. If confirmed, this could upend a nearly 100-year-old model of cosmology.

LiveScience

'A combination of amazement and horror': Hitchhiker fish hide in manta ray buttholes

Hitchhiker fish known as remoras have a very unexpected hiding place: the rear ends of manta rays.

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LiveScience

Eruption blows hole in sun's atmosphere, unleashing solar flare and potentially triggering northern lights

The sun has erupted with a moderate M5.7 solar flare and a coronal mass ejection that could trigger a northern lights display.

LiveScience

Once-in-a-century 'super' El Niño in the cards as ocean temperatures reach near record highs in April

Climate scientists have revealed that last month's sea surface temperatures were the second-warmest for any April on record, reflecting the emergence of El Niño.

LiveScience

'Speculation' and 'egregious failure': 30 researchers publish scathing critiques of study that questioned date of early human occupation of Monte Verde in Chile

Dozens of scientists have banded together to pen scathing research letters to the journal Science about the publication of a study claiming the 14,500-year-old Monte Verde archaeological site in Chile is much younger than shown.

LiveScience

Shimmering silver 'sunglint' obscures Hawaii as hurricane approaches — Earth from space

A 2025 satellite photo shows the swirling cyclone of Hurricane Kiko bearing down on Hawaii while the island state was obscured by a bright, reflective streak.

LiveScience

Microplastics absorb heat in the atmosphere and contribute to global warming — as if they weren't bad enough

Climate scientists have discovered that microplastics and nanoplastics are helping to drive global warming by absorbing sunlight and radiation in the atmosphere.

LiveScience

'The name was inaccurate': PCOS gets a new name after years-long effort

Polycystic ovary syndrome, or PCOS, has just been given a new name that experts say better reflects the nature of the condition.

LiveScience

'Insect apocalypse' is already fueling malnutrition in some regions, first-of-its-kind study reveals

In a first, researchers quantify how pollinator declines contribute to food insecurity.

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