The luminous haze that obscures our view of the constellations - light pollution -is one of the most prevalent forms of environmental alteration. Its impact is felt across a swath of life from the migration of sea turtles to the circadian rhythm of humans.
A new atlas of light pollution created by an international team of scientists reveals just how pervasive this artificial glow is. The atlas shows that more than 80% of the world and more than 99% of the U.S. and European populations live under light-polluted skies. The Milky Way is hidden from more than one-third of humanity, including 60% of Europeans and nearly 80% of North Americans.
Check out this interactive map and read more here.
An important reminder to get out and do some stargazing. -Emily
What’s up for August? How to spot Mercury, Venus, Mars, Jupiter and Saturn, as well as the
and the annual Perseid meteor shower.
Here are some highlights in this month’s nighttime skies as picked by astronomer Jane Houston Jones from our Jet Propulsion Laboratory.
Spot Venus, Mercury and Jupiter and the moon low on the western horizon about 45 minutes after sunset from August 4 through 7. On August 11, look in the south-southwest sky for a second planetary dance as Mars and Saturn are high and easy to see and they are joined by the moon.
The famous and reliably active Perseid meteor shower peaks in the morning hours of August 12. The moon, which paired up so nicely with Mars and Saturn on the 11, is bright enough to blot out some of the meteors, but lucky for you it sets about 1 a.m. on the morning of the 12, just at the peak time for the best Perseid viewing.
But wait, there are more planets, dwarf planets and an asteroid visible this month! Uranus and Neptune and dwarf planet Ceres are visible before dawn in the southern sky. Uranus is visible through binoculars but Neptune and Ceres require a telescope.
Watch the full August “What’s Up” video for more:
Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com.
Here’s the orbital period of our solar system’s 8 major planets (how long it takes each to travel around the sun). Their size is to scale and their speed is accurate relative to Earth’s. The repetition of each GIF is proportional to their orbital period. Mercury takes less than 3 months to zoom around Sol, Neptune takes nearly 165 years.
fuck this gifset do you know how long i sat here waiting for fucking neptune to drag its lazy ass into the frame
We will be taking pre-orders for this shirt until 7/21 at 11:59PM EST.
What the world needed on July 14th, 2015 was love, sweet love.
Learn more about
the inspiration for this shirt: the now iconic New Horizons photo and
its endeavor 9 years in the making that brought us closer to Pluto than
ever before.
This image was captured from a distance of 476,000 miles. Tomorrow’s image will be 10 times sharper than this, says NASA, and akin to seeing the lakes in Central Park and the piers on the Hudson.
Here’s Our First Close-Up Photo Of Pluto’s Surface
NASA’s New Horizons probe launched in 2006 and has traveled 3 billion miles in the past nine years. It’s not stopping at Pluto, but it flew past the dwarf planet at 7.49 a.m. ET Tuesday.
At its closest approach, the spacecraft will have been just 12,500 kilometers (about 7,750 miles) from the surface, traveling at 14 kilometers per second (31,000 miles per hour). This is the first time we’ve come this close to Pluto. [x]
UNITED KINGDOM, Liverpool : A partial solar eclipse of the sun is visible next to the iconic Liver Bird on top of the Liver Building in
Liverpool, north-west England on March 20, 2015. AFP PHOTO / PAUL ELLIS
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