
Is testosterone therapy safe and effective? What we know
Some clinicians are pushing to broaden testosterone use, but there is debate about its benefits and risks

Is testosterone therapy safe and effective? What we know
Some clinicians are pushing to broaden testosterone use, but there is debate about its benefits and risks
The mangled remains of probes sent to Venus may still be there
Scientists long assumed Venus’s harsh environment would quickly destroy artifacts from probe missions. But a new study makes a compelling case to the contrary

Celebrate Mother’s Day with nine bold, beautiful and bizarre animal moms
Here are some of the most fascinating facts about animal moms, from naked mole rats to giraffes and octopuses

This organoid can menstruate—and shows how tissue can repair itself
Mini models of the uterus lining give insight into mystery of how it is shed without scarring

Top climate research center at risk of cuts sues Trump administration
Universities that run the National Center for Atmospheric Research want to keep it from being dismantled

The leader of NASA’s Psyche mission has tips for interplanetary team building
Lindy Elkins-Tanton, principal investigator of NASA’s Psyche mission, explains in her new book how lessons from interplanetary exploration can help people solve problems together

Wildfire breaks out in Chernobyl exclusion zone
A fire covering at least five square miles burned through the exclusion zone around the site of the world’s worst nuclear disaster on Friday after two drones crashed into the area

See the Pentagon’s new UFO image release
The Pentagon has started releasing files related to unidentified anomalous phenomena (UAP), also called UFOs. Here are the images released so far

A massive neutrino experiment is taking shape in an abandoned gold mine
The Deep Underground Neutrino Experiment will study nature’s most mysterious particle a mile beneath South Dakota’s Black Hills and will potentially reveal the origins of matter

The Pentagon just started releasing UFO files, but skeptics say they’re not impressed
The Pentagon’s first UFO file release includes photographs, videos and documents gathered as part of an effort that spans several governmental offices and agencies, including the FBI, the White House and NASA

There is no vaccine for deadly hantavirus, but this scientist is working on one
Virologist Jay Hooper is developing a vaccine for the rare rodent virus behind an outbreak on a cruise ship

Pluto and the folly of planethood
The problem with Pluto isn’t its planetary or nonplanetary status—it’s our insistence on declaring the world must be one or the other