*Philadelphia semiconductor index hits 16- year high. The CBOE volatility index also called Wall Street's "fear gauge" edged up slightly, but remained near year-lows suggesting the markets were in a risk-on mode. "Our sense is that we're still in this Goldilocks period where it's a sweet spot for equities and that will not change probably until the next rate hike,"...
The mid-Atlantic states are under heat alerts, and the steamy weather may make roaches take flight, NBC reports.
GE installed a wireless sensor network to detect and predict when volcanoes erupt, and is capturing the scientific trip on social media.
The Greenland shark lives at least 400 years,
The Perseid meteor shower will peak on Aug. 12, and NASA has some tips on how to watch it.
Highlights of Mars' surface, taken by the HiRISE camera on NASA's Mars Reconnaissance Orbiter.
An MIT team developed "self-shading windows" they say can turn totally opaque several times faster than current designs.
Forecasters are expecting up to four major hurricanes this year in the Atlantic.
Chemicals used to make stain-resistant clothing and non-stick pans are found at unsafe levels in supplies for 6 million people.
Astronomers expect about 200 meteors an hour at the peak of the shower on August 12.
July temperatures across the United States were higher than average, and Alaska is seeing its warmest year ever, federal scientists say.
There's more to virtual and augmented reality than mesmerized "Pokemon Go" players wandering the streets.
The U.S. Food and Drug Administration issued its final word on a trial for the genetically-modified Oxitec mosquito in Florida.
Marcus Kuhnert, the chief financial officer of Merck, comments on the company's earnings report and explains which areas of the business are doing well.
Wealthier urban homes have a greater variety of insects, spiders and other arthropods in them than poorer ones.
The Earth reached record warm temperatures in 2015, and brought both a strong El Nino and record high levels of greenhouses gases in the atmosphere.
Lionfish have been invading Southeast coastal waters at an alarming rate, and now fishermen are taking advantage.
A judge ruled that an HIV pill to prevent infection could be funded by the U.K.'s state health service, in a victory for AIDS campaigners.
This $5.5 million self-propelled spacecraft will attempt the first controlled, Earth-orbit solar sail flight.
Should sporting professionals, academics or even the average individual get their genetic data analyzed? CNBC investigates.