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A newly discovered mechanism helps cells prevent errors during DNA replication
Science News

A newly discovered mechanism helps cells prevent errors during DNA replication

At the scale of individual cells, the human body is constantly in motion. Every second, millions of cells divide, particularly in tissues such as the bone marrow, intestine and skin; neurons and heart muscle cells divide far less frequently. All of this depends on the molecular machinery responsible for copying the billions of chemical units that make up DNA inside the nucleus.

📅 2026-09-21 18:20:05    •    Phys.org
STEM activities with family and educators expose students to diverse career paths
Science News

STEM activities with family and educators expose students to diverse career paths

Activities children take part in with family and friends can help shape the fields of study and careers they pursue as adults. A new study published in the International Journal of STEM Education by FIU education researchers Chris Irwin and Zahra Hazari found that STEM activities and conversations with family, friends and teachers are among the strongest factors influencing students' motivations for pursuing STEM (science, technology, engineering and math) careers.

📅 2026-09-21 18:20:01    •    Phys.org
Antarctica's lost mountains may have helped early life flourish
Science News

Antarctica's lost mountains may have helped early life flourish

Beneath the vast frozen wastes of Antarctica lie the remains of ancient mountains that have long since eroded. Even though they're no longer standing, they can still reveal a few lost secrets. New research published in Earth and Planetary Science Letters suggests that these vanished peaks may have played a fundamental role in the evolution of complex life on this planet.

📅 2026-09-21 18:10:01    •    Phys.org
Lemur uses opera singer's trick to belt out forest songs
Science News

Lemur uses opera singer's trick to belt out forest songs

We are often left open-mouthed in awe as an opera singer hits a soaring top note. Now, researchers at the University of Warwick have found that the indri, the world's only known singing lemur, appears to use a strikingly similar vocal technique to hit high notes.

📅 2026-09-21 18:00:01    •    Phys.org
Southern Taurid meteor shower begins ‪—‬ how to spot blazing 'fireballs' from now till November
Science News

Southern Taurid meteor shower begins ‪—‬ how to spot blazing 'fireballs' from now till November

One of the longest-running meteor showers of the year began on Sunday (Sept. 20), as the Southern Taurids start sending occasional "shooting stars" — and, potentially, spectacular fireballs — across the night sky.The Southern Taurid meteor shower runs from Sept. 20 through Nov. 20, peaking overnight on both Oct. 13-14 and Nov. 4-5, according to the American Meteor Society. Although only about five to 10 meteors per hour can be expected during the shower's peak, the Taurids have a reputation for producing fireballs — very bright meteors that appear as flashes while falling through the atmosphere.Patience is often rewarded with some of the most impressive meteors of the year, partly because th...

📅 2026-09-21 16:06:06    •    Live Science
Stopping Ozempic may raise heart attack and stroke risk
Science News

Stopping Ozempic may raise heart attack and stroke risk

A large study suggests the cardiovascular benefits of GLP-1 drugs such as Ozempic, Wegovy, Mounjaro, and Zepbound can disappear surprisingly quickly when treatment stops. After two years off the medications, patients had a 22% higher risk of heart attack, stroke, and death compared with those who stayed on them.

📅 2026-09-21 13:35:30    •    ScienceDaily