Study finds that sperm quality may change depending on the season

New research suggests that human sperm quality follows a seasonal pattern, peaking in the summer and declining in the winter. The study, published February 21 in the journal Reproductive Biology and Endocrinology, analyzed semen samples taken from more than 15,000 sperm donors in Denmark and the United States, particularly in Florida. Across both populations, scientists […]

Scientists recently developed a nasal spray to protect against multiple respiratory illnesses, including seasonal influenza and COVID-19, and tested it on mice for three months. They call this promising invention a “universal respiratory vaccine,” but it doesn’t stimulate the immune system like traditional vaccines. you may like seek universal protection The push for a universal […]
Pomos Idol: A 5,000-year-old Cypriot fertility figurine with a miniature version of itself on a necklace.

The Pomos idol has become a symbol of Cyprus. (Image credit: The Print Collector/Alamy) simple facts Name: Pomos idol What is it: carved figurine Birthplace: Pomos, Cyprus Created: Around 3000 BC In the early 1930s, archaeologist Porphyrios Dikaios was excavating in the village of Pomos on the north coast of Cyprus when he accidentally discovered […]
Human ancestors butchered and ate elephants 1.8 million years ago to help fuel their large brains.

Imagine a creature almost twice the size of a modern African elephant (weighing up to 6,000 kg). [13,000 lbs]). This is Elephas (Paleooxodon) Reki, a prehistoric giant that roamed the landscape of present-day Tanzania about 2 million years ago. Now, imagine a group of our ancestors standing over that carcass, slaughtering it and eating it. […]
Ancient Egyptian stone monument depicting Roman emperor as pharaoh discovered in Luxor

Archaeologists in Egypt have discovered a 2,000-year-old sandstone monument depicting a Roman emperor as a pharaoh. This small rectangular monument, called a stele or stele, was discovered during restoration work on the Karnak temple complex in Luxor (ancient Thebes). The tablet, approximately 60 x 40 centimeters in size, dates from the reign of Tiberius (14 […]
‘No human mind should have to go through this’: Artemis II crew recalls the surreal moment Earth disappeared — Space Photo of the Week

simple facts What it is: ‘Earthset’ seen by the crew of NASA’s Artemis II mission Location: 4,070 miles (6,550 kilometers) above the moon’s surface Share date: April 6, 2026. This striking image shows a crescent-shaped Earth slipping behind the Moon’s rugged edge. This “Earth set” was witnessed by the crew of NASA’s Artemis II mission […]
Does the moon look the same no matter where you are on Earth?

There are many reasons to look at the moon, whether you’re watching a spectacular lunar eclipse or studying the moon through a telescope. But does the moon look the same from anywhere on Earth? The simple answer is no, astronomers told Live Science. The moon’s appearance not only changes depending on location, but also appears […]
Found a new meteor shower – it’s coming from an asteroid scorched by the sun

Every night on Earth, thousands of automated stargazers wait to take pictures of shooting stars. I’m one of the scientists studying these meteors. Most movies and news stories focus on large asteroids that could destroy Earth. And every few months, my phone alerts me that an object the width of nine washing machines is about […]
AI for farewell messages? How chatbots are interfering with our ability to deal with difficult social situations.

A new study suggests that the sycophantic responses of artificial intelligence (AI) systems may be confusing the way people deal with social dilemmas and interpersonal conflicts. Scientists have found that when AI chatbots are used to advise on interpersonal dilemmas, they tend to affirm users’ perspectives more often than humans, and even endorse problematic behaviors. […]
This week’s science news: Artemis II splashes, world’s fattest parrot bounces off, and Shroud of Turin is contaminated

This week in science news, we were surprised by the latest information from the Artemis II mission. The mission saw four astronauts orbit around the far side of the moon before safely splashing down in the Pacific Ocean. The grueling final stage of the mission, which Live Science covered with minute-by-minute live updates, was a […]