Climate connections

In common parlance, the phrase "global climate change" is often used to describe how present-day climate is changing in response to human activities. But climate has also varied naturally and sometimes quite rapidly in the ...

Foursquare unveils location-based ad service

Location-based social network Foursquare on Tuesday unveiled a new service that aims to deliver targeted ads to customers "based on the places they go in the physical world."

Twitter as a flood rescue tool

As a social networking tool used by millions, Twitter can be a great help in disaster operations, said researchers Tuesday who created real-time flood maps using data from tweets.

Egypt archaeologists find pharaoh chapel

Archaeologists excavating an ancient temple site in Cairo have discovered part of a chapel used by a pharaoh about 2,300 years ago, Egypt's antiquities ministry said on Tuesday.

Study puts a price on help nature provides agriculture

A team of international scientists has shown that assigning a dollar value to the benefits nature provides agriculture improves the bottom line for farmers while protecting the environment. The study confirms that organic ...

Singapore high school maths problem stumps the Internet

A maths problem that first appeared in a test for Singapore's elite high school students has baffled Internet users around the world after it went viral, prompting a rush of attempts to solve it.

SpaceX cargo ship blasts off toward space station

SpaceX's unmanned Dragon cargo ship blasted off Tuesday toward the International Space Station, carrying a load of food and supplies for the astronauts living in orbit.

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