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Earthlike exoplanets with Earthlike interiors?
Rocky planets orbiting other stars have interiors similar to Earth's, with a thin outer crust, thick mantle, and Mars-sized core, says a new study.
February 10, 2016
Volcanos, lakebeds and possible Mars life
Scientists are traveling to Tibet this summer to explore places that might be possible earthly analogs to regions on Mars once suitable for life.
February 10, 2016
James Webb Space Telescope takes a giant step
It'll have 7 times the collecting area of Hubble, and it's scheduled for launch in 2018. James Webb Space Telescope ... and more on this episode of EarthSky News.
February 8, 2016
See 5 bright planets at once
First time we can see 5 planets at once since 2005. All 5 are up before dawn, still, and all 5 will remain visible until Mercury disappears in the dawn just after mid-February.
February 8, 2016
Pluto has mysterious, floating hills
The hills are thought to be fragments of Pluto's rugged uplands that have broken away and are being carried along the flow paths of glaciers.
February 8, 2016
Mars’ west quadrature on February 7
At west quadrature on February 7, 2016, the red planet appears 90% illuminated as seen through a telescope. Fantastic time to see Mars is just ahead.
February 7, 2016
Violent, head-on crash created moon
On this episode of EarthSky News, an update on the idea that the early Earth collided with a Mars-sized proto-planet to make the moon. That and more. Join us.
February 4, 2016
Is our Milky Way galaxy a zombie?
An astrophysicist says our Milky Way may already be dead, but is still going. Why do galaxies stop forming stars, change their shape and fade away?
February 4, 2016
Darn. No caverns on Rosetta’s comet
Low density of comets suggested there might be huge empty caves honeycombed throughout their interiors. Maybe true for some, but not so for Rosetta's comet.
February 4, 2016
New image of enormous black hole blast
It shows a giant jet of particles extending 300,000 light-years, blasting from a black hole at the center of a distant galaxy.
February 3, 2016
