This artist's rendering made available by NASA on Thursday shows a comparison between the Earth, left, and the planet Kepler-452b.

Scientists call discovery a ‘close cousin’ to Earth

Using NASA’s Kepler space telescope, scientists in California have identified a planet orbiting a sun-like star.

1 week ago

Could a tornado pick up a shark? No, really.

Sharks in a tornado? A report from WPXI chief meteorologist Stephen Cropper in Pittsburgh.

1 week ago

Study shows Alzheimer’s worsens faster with women than men

Women with early memory loss decline at a much faster pace than men, a study has found.

1 week ago

Stephen Hawking announces $100 million hunt for alien life

Physicist Stephen Hawking and Russian billionaire Yuri Milner said their new project will harness major computing power, supertelescopes.

1 week ago

Sure, it's been lousy, but at least the weather is consistent

Pittsburgh hasn’t seen a single sunny day this summer.

2 weeks ago

 David Mims, left, a fourth-grader at Propel Homestead, and Branden Panell, a fifth-grader at Woodland Hills Academy, work on a digital manipulation project Friday during one of many workshops held at the National Energy Technology Laboratory "My Brother's Keeper Day at the Lab" event. About 100 minority students from Pittsburgh regional, middle and high schools participated in the daylong event.

National lab hosts event for sake of science

The My Brother’s Keeper initiative, launched President Barack Obama, was created to help close the opportunity gaps of young men of color.

2 weeks ago

 Seated background, from left, La Monte Yarroll, a mycologist for the Western Pennsylvania Mushroom Club, and Dick Dougall an identifier for the club, organize the cataloging of mushrooms found on a two-hour club-sponsored mushroom walk in Salamander Park in Fox Chapel.

Enthusiasts take walk on the wild side, mushrooming in the woods of Western Pa.

While most Pittsburghers have been complaining about the frequent rain this summer, local mushroom hunters have welcomed it.

2 weeks ago

 In this week’s Science journal, CMU's Tom Mitchell, pictured, and University of California-Berkeley professor Michael Jordan describe the state of the art in machine learning and speculate about where the field is headed.

CMU professor at forefront of machine learning research

Computers that teach themselves affect nearly every part of our lives, from finances to communication.

2 weeks ago

 This image taken Monday and provided by NASA shows Pluto from the New Horizons spacecraft. The United States is now the only nation to visit every single planet in the solar system. Pluto was No. 9 in the lineup when New Horizons departed Cape Canaveral, Fla, on Jan. 19, 2006.

U.S. spacecraft flies by Pluto after nine-year, 3 billon mile trip

Based on everything NASA knows, New Horizons was on course for the historic encounter, sweeping within 7,800 miles of Pluto at 31,000 mph.

2 weeks ago

 This July 11, 2015, image provided by NASA shows Pluto from the New Horizons spacecraft. On Tuesday, July 14, NASA's New Horizons spacecraft will come closest to Pluto. New Horizons has traveled 3 billion miles over 9½ years to get to the historic point. (NASA/JHUAPL/SWRI via AP)

Spacecraft finds Pluto is larger than expected

New Horizons spacecraft, set to zoom by Pluto this morning, finds the dwarf planet is slightly larger than thought.

2 weeks ago

Distant Pluto finally gets its day in the sun

NASA’s New Horizons is expected to come as close as 7,800 miles from Pluto at 7:49 a.m. EDT on Tuesday.

3 weeks ago

 Pluto is pictured in this July 7, 2015 image from New Horizons Long Range Reconnaissance Imager (LORRI). The image has been combined with lower-resolution color information from the Ralph instrument.

Almost time for Pluto’s close-up

About 7:50 a.m. Eastern time July 14, New Horizons is expected to pass fewer than 7,800 miles above Pluto’s surface.

3 weeks ago

 Silene Virginica fire pink growing along the new accessible trail that highlights understory plants native to Powder Mill Reserve near Rector, Pa.

Native plants the stars along Powdermill Reserve's trails

Powdermill Nature Reserve is adding trails, including one accessible to those with disabilities and another for serious hikers.

3 weeks ago

 Veteran Tim Hornik, 35, undergoes guide dog training in Queens on Wednesday. Mr. Hornik and his guide dog, Black Jack, have been working together for nearly two weeks. Mr. Hornik's vision was damaged after he was shot in the face by a sniper in Iraq in 2004.

UPMC exploring future of eye transplants

Acknowledging the years of work still to come, a University of Pittsburgh researcher forges ahead on an experimental eye transplant program.

4 weeks ago

Blinded veterans say not enough research money goes toward vision injuries

Congress has supplied $10 million in special vision research funding in the budget, but advocates have been unable to increase that figure.

4 weeks ago