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Posts by
Editors of EarthSky
July 2015 was warmest month ever recorded
Last month's average global temperature was the all-time highest monthly temperature since record-keeping began in 1880.
August 21, 2015
No asteroid threatening Earth in September
Despite rumors, no asteroid threatens Earth. All known Potentially Hazardous Asteroids have less than a 0.01% chance of hitting Earth in the next 100 years, says NASA.
August 20, 2015
View from space: Fires in US Pacific Northwest
Wildfire outbreaks have charred nearly 7 million acres this summer. Satellite view of several fires burning in Idaho, Oregon, and Washington.
August 18, 2015
First digital map of world ocean floor
Scientists have created a new digital map of Earth's seafloor geology.
August 14, 2015
Where lightning flashes most
According to satellite observations, more lightning happens over land than over the oceans, and more often closer to the equator. Check out this map.
August 12, 2015
Swirling mystery of Jupiter’s Great Red Spot
The Great Red Spot has been swirling wildly over Jupiter for the past 150 years, but scientists still aren't sure what causes the gigantic storm's reddish hues.
August 11, 2015
Is this the largest feature in the universe?
Astronomers have found what appears to be the largest feature in the universe: a ring of gamma ray bursts - and hence galaxies - 5 billion light years across.
August 7, 2015
El Niño conditions growing stronger
El Niño has strengthened in the past several months. Will this El Niño rival the event of 1997–98?
August 5, 2015
Tracking an oddball group of near-Earth asteroids
Astronomers have traced some mysterious near-Earth asteroids back to their likely source.
August 4, 2015
A third of Milky Way stars have changed orbit
Astronomers have created a new map of the Milky Way that shows that about 30 percent of the stars have traveled a long way from the orbits they were born with.
August 3, 2015
