Raquel Alexa Knight

12 Flips | 1 Magazine | @rocsialexa | Keep up with Raquel Alexa Knight on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “Raquel Alexa Knight”

Hatta Dam, day to night

A composite image created from two photos – one day and one night – of Hatta Dam in the United Arab Emirates.<p>Hatta is a sheikhdom in the Hajjar …

Photos: After A Storm, A Red Sky, Double Rainbow Over Atlanta

We're a bit late to this. But it's so stunning, we'll share it anyway: Thursday night, the remnants of a strong storm and a sunset came together at just the right time to form a beautiful celestial treat: a red sky, double rainbow spanning the city of Atlanta.<p>Associated Press photographer David …

Light from this 12-billion-year-old explosion just reached Earth

The rare gamma-ray burst occurred shortly after the Big Bang<p>It took 12 billion years, but light from a massive explosion that occurred shortly after the Big Bang has just reached Earth.<p>The rare gamma-ray burst could help scientists understand more about the early universe.<p>Recorded as GRB 140423A, …

Your favorite ocean photos

We asked, and you answered with some of the most awesome ocean photos yet! Thanks for all in the EarthSky community who contributed.<p>World Oceans Day …

Tides, and the pull of the moon and sun

Expect higher-than-usual tides in the days following the January 31, 2018, full supermoon.<p>In most places, but not everywhere, there are two high …

DNA Sequencing Diagnoses Boy's Mysterious Bacterial Disease

This is the first time doctors have used DNA sequencing for emergency diagnosis and treatment.<p>For the first time, doctors have used DNA-sequencing technology to diagnose and treat a boy in an emergency. It's a big step for DNA sequencing—that the technology is able to work so quickly, and to help a …

This Spider Disguises Itself As Bird Poo To Avoid Getting Eaten

Animals have evolved lots of creative ways to blend in with their environments, developing colors or body types that help them hide from predators. But sometimes, camouflage isn’t enough, and a creature has to masquerade as something else. Some creatures pretend to be an object that no animal would …

Hubble Telescope Unveils Most Colorful View of the Universe Yet

Changing Planet<p>Composite visible and near infrared light collected from Hubble over a nine-year period.<br>Courtesy of NASA/ESA<p>NASA’s Hubble space telescope has unveiled its most colorful window into the universe yet, a glimpse of some 10,000 galaxies spread across space. Some of those universes date …

An Enormous Asteroid Is Passing By Earth Today And NASA Just Found Out About It

Today is the day this monstrosity is whizzing past our planet. And even though there's no chance it will hit us, it will get relatively close.<p>"Beast" is only a little over 3 times the distance to the moon today at its closest point. That's just 777,000 miles.<p>And at its fastest, the asteroid is …