Nearest Star has Earth-Sized Planet
Earth-sized planet orbiting nearest star; Seismic wave reveals more about Earth鈥檚 interior; The effect of 'Trump鈥檚 Wall' on wildlife; Natural world knowledge dies with languages
Life on other planets is often considered to be the stuff of science fiction. But we are one step closer in the hunt for extra-terrestrial life as an Earth-sized planet has been found to be orbiting our nearest star, Proxima Centauri.
Weather Bombs Help Us Look at Earth鈥檚 Interior
Large storms called weather bombs send pressure waves through the Earth鈥檚 core. A new part of this wave has been detected, enabling us to find out more about the mysterious structure of the Earth鈥檚 interior.
Trump鈥檚 Wall and Wildlife
US presidential candidate, Donald Trump鈥檚 plan to build a wall across the entire US-Mexican border would mean bad news for the fragile ecosystem of this important wildlife area. The border area is home to a diverse population of mammals, birds and plants鈥攊ncluding a number of iconic and rare species. Freedom of movement across the border is crucial for habitat connectivity and genetic diversity. A number of species, including Desert bighorn sheep, black bears and the iconic roadrunner, would be at risk from the proposed construction.
Hidden in a Name
The names we give things in the natural world often contain clues about what they look like, how they behave or where they come from. But with thousands of human languages approaching extinction, important plant knowledge may die with them.
(Photo: 漏 ESO/M. Kornmesser, A view of the surface of the planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to our Solar System, is seen in an undated artist's impression)
Presenter: Marnie Chesterton
Producer: Fiona Roberts
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Earth-sized planet found
Duration: 00:46
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- Thu 25 Aug 2016 21:32GMT91热爆 World Service except East and Southern Africa & News Internet
- Fri 26 Aug 2016 01:32GMT91热爆 World Service Americas and the Caribbean
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