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Phys.org / Vast cluster of ancient galaxies could rewrite the history of star formation

Astronomers have discovered a vast, dense cluster of massive galaxies just 1 billion years after the Big Bang, each forming stars at an intense rate from collapsing clouds of dust. Reported in Astronomy & Astrophysics by ...

20 hours ago in Astronomy & Space
Phys.org / Strategic sex: Alaska's beluga whales swap mates for long-term survival

In the icy waters of Alaska's Bristol Bay, a new study reveals how a small population of beluga whales (Delphinapterus leucas) survive the long haul through a surprising strategy: they mate with multiple partners over several ...

8 hours ago in Biology
Medical Xpress / Study finds preventive HIV drugs are under prescribed to young women at increased risk

Although adolescents and young adults comprise only one quarter of the sexually active population in the United States, approximately half of new sexually transmitted infections (STIs) are diagnosed in people of these ages.

2 hours ago in Medications
Phys.org / SPHEREx imaging reveals increased sublimation activity on 3I/ATLAS

The interstellar object, 3I/ATLAS, was first discovered in July 2025, and made its closest approach to the sun (perihelion) in late October. New observations of 3I/ATLAS were taken in December from the SPHEREx observatory—a ...

19 hours ago in Astronomy & Space
Medical Xpress / Internet Gaming Disorder is affecting a significant portion of young adults

Researchers out of Spain and Italy report a globally pooled Internet Gaming Disorder prevalence of 6.1% among adults ages 18–35. Internet Gaming Disorder is considered a condition for further study in DSM-5-TR, with official ...

21 hours ago in Psychology & Psychiatry
Medical Xpress / Mix of different types of physical activity may be best for longer life

Regularly doing a mix of different types of physical activity may be best for prolonging the lifespan, but the associations aren't linear, pointing to a possible optimal threshold effect, suggests research published in the ...

14 hours ago in Health
Medical Xpress / Cannabis legalization driving increases in marijuana use among U.S. adults with historically lower consumption rates

A new study led by Boston College School of Social Work Professor Summer Sherburne Hawkins found that recreational cannabis legalization in the United States is driving increases in cannabis use among adults with historically ...

3 hours ago in Health
Phys.org / UN report declares global state of 'water bankruptcy'

The world is entering an era of "global water bankruptcy" with rivers, lakes and aquifers depleting faster than nature can replenish them, a United Nations research institute said on Tuesday.

3 hours ago in Earth
Phys.org / Bats use 'acoustic flow velocity' to navigate complex environments in darkness

A long-standing mystery about how wild bats navigate complex environments in complete darkness with remarkable precision, has been solved in a new University of Bristol-led study. The findings are published in Proceedings ...

13 hours ago in Biology
Phys.org / Ancient Mesopotamian medical texts reveal the role of divine sanctuaries in treating ear and spleen ailments

In a study published in the journal Iraq, Dr. Troels Arbøll analyzed medical prescriptions from ancient Mesopotamia to understand and re-evaluate the role sanctuaries played in the healing process. The study found that specific ...

Jan 20, 2026 in Other Sciences
Phys.org / Bubble netting knowledge spread by immigrant humpback whales, study finds

New research from the University of St Andrews has found that the social spread of group bubble-net feeding among humpback whales is crucial to the success of the population's ongoing recovery.

13 hours ago in Biology
Phys.org / Drones reveal how feral horse units keep boundaries

For social animals, encounters between rival groups can often lead to conflict. While some species avoid this by maintaining fixed territories, others, like the feral horses, live in a "multilevel society" where multiple ...

13 hours ago in Biology