How Philadelphia Weather On July 4th, 1776 Compared To Today

A weather and history lesson on July 4th and the Semiquincentennial.

A Virus That Predates The Republic Has Been Hiding In American Mosquitoes. Scientists Just Decoded Its History

A mosquito-borne virus circulating since the 1700s went unnoticed until genomic sequencing revealed its centuries-long history and unique two-cycle transmission.

A Virus That Predates The Republic Has Been Hiding In American Mosquitoes. Scientists Just Decoded Its History

A mosquito-borne virus circulating since the 1700s went unnoticed until genomic sequencing revealed its centuries-long history and unique two-cycle transmission.

Food Preservatives May Increase the Risk of High Blood Pressure and Cardiovascular Disease

Aa large-scale study demonstrates that preservatives widely used in everyday processed foods may exacerbate common health risks.

Food Preservatives May Increase the Risk of High Blood Pressure and Cardiovascular Disease

Aa large-scale study demonstrates that preservatives widely used in everyday processed foods may exacerbate common health risks.

Scientists Have Identified a New Fossil Species of Axolotl in Mexico

Ambystoma quetzalcoatli is the first fossil salamander to be formally identified in Mexico, revealing that axolotls have inhabited the country for millions of years.

A Chinese Spacecraft Just Arrived At Earth’s ‘Quasi Moon’

China’s Tianwen-2 has arrived at Kamoʻoalewa, a tiny quasi-satellite of Earth, beginning a mission to collect samples and test its lunar origins.

A Chinese Spacecraft Just Arrived At Earth’s ‘Quasi Moon’

China’s Tianwen-2 has arrived at Kamoʻoalewa, a tiny quasi-satellite of Earth, beginning a mission to collect samples and test its lunar origins.

Scientists Have Identified a New Fossil Species of Axolotl in Mexico

Ambystoma quetzalcoatli is the first fossil salamander to be formally identified in Mexico, revealing that axolotls have inhabited the country for millions of years.

Fancy Trying Astrotourism? Don’t Miss August 12, 2026

August 12, 2026 brings a rare skywatching double-header: a solar eclipse across Europe and parts of North America, followed by the peak of the Perseid meteor shower.