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Editors of EarthSky
New image: Two contrasting galaxies
A new image shows two galaxies, close to each other in space, but with very different histories - small spiral NGC 1317 and the large battle-scarred NGC 1316.
April 2, 2014
Mars opposition happens this month: It’s really easy to see
Earth and Mars are converging for a beautiful close encounter in April, an event astronomers call "the opposition of Mars."
April 2, 2014
Will the Yellowstone supervolcano erupt in your lifetime?
The supervolcano under Yellowstone Park is one of the biggest in the world. When will it erupt again? This NFS scientist doesn't think it'll happen anytime soon.
April 1, 2014
Are microbes responsible for Earth’s largest mass extinction?
Around 250 million years ago, 90 percent of Earth's life was wiped out. The cause, new research suggests, wasn't asteroids, or volcanoes, but methane-spewing microbes.
April 1, 2014
Breakthrough in invisibility cloaks, stealth technology
Scientists can create artificial nanostructures that can 'bend light.' But the challenge has been making enough of the material to turn invisibility cloaks into a practical reality.
March 31, 2014
Climate change effects already seen on all continents, all oceans
An IPCC report, issued today, says that climate change has already affected agriculture, human health, water supplies, and people’s livelihoods, from the tropics to the poles, from the wealthiest countries to the poorest.
March 31, 2014
Rosetta sets sights on destination comet
The Rosetta spacecraft has caught its first glimpse of comet 67P/Churyumov–Gerasimenko since waking up from deep-space hibernation in January.
March 28, 2014
Comet Siding Spring barrels toward sun, sprouts multiple jets
On October 19, 2014, Comet C/2013 A1 Siding Spring will sweep closer to Mars than our moon is to Earth. Dust shed by the comet could endanger spacecraft orbiting Mars.
March 28, 2014
Astronomers discover first asteroid with rings
This is the smallest object by far found to have rings and only the fifth body in the solar system - after planets Jupiter, Saturn, Uranus and Neptune - to have rings.
March 26, 2014
New solar system edge and speculations on an undiscovered planet
The new most-distant object in our solar system is 2012 VP113, whose closest point to the sun is about 80 times the Earth-sun distance.
March 26, 2014
