News tagged with aliens

Colonization of Brazil by the cattle egret

In recent years the cattle egret (Bubulcus ibis) has colonized American continent. Invasive species are a worldwide problem and studies are devoted to assess the damage they cause to local species popula ...

May 09, 2014 not rated yet 0

Science needs to be more dangerous

Few would argue the world isn't facing enormous challenges: human population growth and the associated demand for resources, mass extinctions or – perhaps the biggest of all – global climate change.

Nov 20, 2013 4.3 / 5 (10) 9

Silence in the sky—but why?

(Phys.org) —Scientists as eminent as Stephen Hawking and Carl Sagan have long believed that humans will one day colonise the universe. But how easy would it be, why would we want to, and why haven't we ...

Aug 26, 2013 4.2 / 5 (71) 213 | with audio podcast

The case for alien life

Only one planet has been proven to support life: Earth. But evidence is mounting that we are not alone. Biogeochemist Ariel Anbar and astrophysicist Steven Desch, professors in ASU's School of Earth and Space ...

Jul 16, 2013 3.2 / 5 (13) 2