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Scientists have developed a smartphone app to measure sperm count at home.

A Smartphone Can Accurately Test Sperm Count

Measuring the quality of those little swimmers usually requires a trip to the doctor. Researchers have come up with a smartphone accessory that would let men do that at home in less than five seconds.

Jorge Cham is the creator of PHD Comics and received his doctorate in Mechanical Engineering at Stanford University. PHD (Piled Higher and Deeper) is a comic strip about life (or the lack thereof) in academia. See more of his work at www.phdcomics.com.

A Glut Of Ph.D.s Means Long Odds Of Getting Jobs

Only one in five Ph.D.s in science, engineering and health end up with faculty teaching or research positions within five years of completing their degrees. But universities keep churning them out.

http://photojournal.jpl.nasa.gov/jpeg/PIA17254.jpg

Have Spare Time? Try To Discover A Planet

Astronomers think there's an undiscovered planet lurking in the far reaches of the solar system, and they're asking the public's help to find it.

SpaceX's Falcon 9 rocket is prepared Friday for a launch at the Kennedy Space Center in Florida. Launch Pad 39A, one of the renovated space shuttle launch pads that SpaceX leases from NASA, has been the site of many of NASA's most famous liftoffs.

A Liftoff Deferred: SpaceX Mission From NASA's Historic Launch Pad Delayed

Launch Complex 39A, the site of the Apollo 11 mission, has quite a storied past. Now, it's on the brink of a new era — but it'll have to wait a bit, after Saturday's launch was scrubbed for 24 hours.

Paul, Alejandro and Marcia wearing their racing kit at Santa Pod after Demo 2. They have been drag racing to look at the Doppler effect and how sound and light waves are similar.

GENIUS BY STEPHEN HAWKING: Where Did The Universe Come From?

Airs Wednesday, May 25, 2016 at 10 p.m. on KPBS TV

The flotsam of flowers, earthenware, religious idols and clothing left behind by pilgrims clog the banks of the Ganges in Allahabad, India. But the biggest polluter is millions of gallons of untreated sewage discharged into the river.

Will Giving The Ganges Human Rights Protect The Polluted River?

A court in India declared its holiest river is entitled to the same rights as a person that would include the right to sue polluters. Still, many think the divine waters are unimpacted by pollution.

Caroline Solomon is an associate professor of biology at Gallaudet University, the renowned school for deaf and hard-of-hearing students.

In The Classroom And On the River, Modeling Success In Science

Meet Caroline Solomon, an associate professor of biology at Gallaudet University, the renowned school for deaf and hard-of-hearing students.

Exercising While Pregnant Is Almost Always A Good Idea

Women often worry that exercise is dangerous during pregnancy, but the data shows it's almost always good for both mother and the developing fetus. As with so many things, moderation is key.

The ruby seadragon is seen in this image from a 2016 expedition off the coast of Western Australia.

San Diego Scientists Bring Back First Footage Of Colorful Seadragon

After discovering a new species of seadragon by analyzing specimens held in museums, a team of San Diego scientists has spotted the colorful creature in the wild and brought back the first glimpses of it captured on film.

Master science communicator Brian Greene shares the spotlight with Muppet scientist Dr. Bunsen Honeydew ahead of the 2008 World Science Festival in New York City.

Is Anti-Gravity Possible? Brian Greene's WSU Has The Answer

Popular physicist Brian Greene just opened the virtual doors to his World Science U, a resource for those who want to know more. Commentator Adam Frank says it's worth the trip.

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