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Scientists warn: Soon it will be too late to save Earth

More than 15,000 scientists in 184 countries have signed a letter urging the world to address major environmental concerns. “Soon it will be too late to shift course away from our failing trajectory, and time is running out.”

Citizen inventors: NASA’s 3D Printed Habitat Challenge

Future space missions won’t be able to carry all their building materials from Earth. Competitors are challenged to fabricate habitats using indigenous materials. $2 million prize!

A depiction of the small rat-like mammals, that lived 145 million years ago, believed to be the earliest known ancestors of most modern mammals, including humans. Image courtesy of Dr Mark Witton, palaeo-artist, University of Portsmouth.

Scientists find teeth of early human ancestor

A remarkable find of fossil teeth from tiny, furry-tailed creatures – thought by scientists to be a human ancestor – dating back 145 million years.

Will 15 days of darkness start November 15? Nah

Are you ready for 15 days of darkness, November 15-30? No need to be. It’s a hoax.

Today in science: Carl Sagan’s birthday

For many, for decades, Carl Sagan’s name was synonymous with astronomy.

A Carolina chickadee with a juicy caterpillar. Photo courtesy of Desiree Narango and Doug Tallamy.

Want birds in your yard? Plant native trees

A recently published study confirms that native trees are most effective in hosting caterpillars, an important food for birds.

2016 greenhouse gases at record high

As climate talks open in Bonn, Germany this week, negotiators are considering a report from the World Meteorological Organization, urging action now.

2017 ozone hole smallest since 1988

This year’s ozone hole peaked in September at its smallest observed extent since 1988, due to an unstable and unusually warm Antarctic vortex in 2017.

Is daylight saving time worth the trouble?

Advocates say daylight time saves energy and wins wars. But studies show injuries and illnesses rise when clocks change.

Next Mars rover will have 23 eyes

Cameras have come a long way since the first Mars rover in 1997. The newest Mars rover from NASA – on the Mars 2020 mission – will have a wider field of view, plus more color and 3-D imaging.