The Explorer

By Leland Melvin | S.T.E.A.M: Combine Science, Technology, Engineering, the Arts and Math to inspire creative solutions.

Earth, Mars, and the Sun Are Aligning This Weekend to Put On a Beautiful Show

And the moon even has a trick up its sleeve, too.<p>If you're lucky enough to live in a place with a clear sky this weekend, grab your binoculars, because there's going to be a lot to watch this weekend.<p>The Associated Press reports that on Sunday morning, Earth, Mars, and the Sun will be perfectly …


Daily Edition Top 10 (Week of May 2, 2016)

The impact of this week’s vote in Indiana was far reaching. Donald Trump became the presumptive Republican presidential nominee and Ted Cruz and John Kasich withdrew from the race. While Trump’s ascendance and the reaction to it dominated the news throughout the week, other major events took place …

Ted Cruz

Mars and Earth are getting closer (for now)

<b>(CNN) —</b> We haven't seen Mars like this in more than a decade.<p>The red planet will soon be closer to Earth that it has been in 11 years: On May 30, Mars will be about 46.8 million miles (75.3 million kilometers) from Earth. Yes, that's still a long way off, but sometimes Mars is 249 million miles …

Solar System


SpaceX Undercuts ULA to Win Rocket Launch Contract With U.S. Air Force

The Air Force had relied solely on United Launch Alliance to launch satellites for the past decade.<p>The U.S. Air Force will save 40% by buying a GPS satellite launch from Elon Musk’s SpaceX compared with what United Launch Alliance has been charging, the head of the Space and Missile Systems Center …


Why Does Gravity Move At The Speed Of Light?

, Contributor<p>If you looked out at the Sun across the 93 million miles of space that separate our world from our nearest star, the light you’re seeing isn’t from the Sun as it is right now, but rather as it was some 8 minutes and 20 seconds ago. This is because as fast as light is — moving at the …


Hamilton tribute to Prince 4/21/16

March was Earth's 11th-straight warmest month on record

<i>UPDATE: April 15, 2016 3:45 p.m. ET</i><p>NASA's March temperature data was released Friday, showing that it was the planet's second-most unusually mild month on record, only somewhat cooler than February 2016.<p>The NASA data shows the monthly global average temperature was 1.28 degrees Celsius, or 2.3 …

Earth Science

Meet The 'Rocket Girls,' The Women Who Charted The Course To Space

In the 1940s, an elite team of mathematicians and scientists started working on a project that would carry the U.S. into space, then on to the moon and Mars. They would eventually become NASA's Jet Propulsion Laboratory (or JPL), but here's what made them so unusual: Many of the people who charted …


Doctors Explain How Hiking Actually Changes Our Brains

advertisement - learn more<p>While it may seem obvious that a good hike through a forest or up a mountain can cleanse your mind, body, and soul, science …


What Do Star Trails Look Like From The ISS?

, Contributor<p>To photograph star trails from Earth, simply point your camera and let the Earth rotate, leaving the shutter open.<p>But our 24 hour period is nothing compared to the ISS astronauts, who circle the entire Earth every 90 minutes at some 17,000 mph (27,000 kph).<p>In February of 2010, the …


The 100 best nonfiction books: No 10 – The Selfish Gene by Richard Dawkins

What is man, and what are we for? Remarkably, it was not until Charles Darwin published <i>On the Origin of Species</i> in 1859 that anyone, in our history, had thought methodically to address the reason for our existence. Darwin’s answer to this simple question was to show that every earthly species – …

Evolutionary Biology

Great Big Story

“@NASA in the House🚀”

We asked an astrophysicist 10 insanely difficult questions about the universe

Some of us blindly accept things the way they are. We exist. It doesn’t matter why, we just do. But for others, such as astrophysicist Duncan …

I'm Possible.

4 Reasons to Start Class With a Poem Each Day

Photo credit: U.S. Coast Guard via flickr (CC BY-SA 2.0)Brett VogelsingerLiteracyMake a daily habit of starting every ELA class with a poem -- …


Somewhere in Cali repping the movement. When you see the logo you know it's real #HipHopEd #themovement

I hurtled through space on a VR roller coaster and it was intense

ALTON TOWERS, England — Space travel might be a distant dream for most of us, but there's a new ride opening in the UK that will let earthlings fly off into the stars — at least for a few minutes.<p>Galactica, which opens at the Alton Towers theme park next month, is "the world's first roller coaster …

Roller Coasters

Killer robots and digital doctors: how can we protect society from AI?

Elon Musk, founder of SpaceX, Tesla and PayPal, is worried about killer robots. “You know those stories where there’s the guy with the pentagram and the holy water, and he’s sure he can control the demon?” he has warned. “Doesn’t work out.”<p>That “unfriendly AI”, as it is known in tech circles, would …


The mysterious boundary

A black hole’s event horizon is a one-way bridge to nowhere, a gateway to a netherworld cut off from the rest of the cosmos.<p>Understanding what …

Climate scientists step up search for 'holy grail' of million-year-old ice

Somewhere deep below the ice in Antarctica lies a time capsule. It’s the holy grail of climate science and promises to reveal the past and future of Earth’s atmosphere. And right now, scientists are meeting in Hobart to work out a plan to dig it up.<p>The time capsule is ice that froze 1.5m years ago, …

“Always great to be around my former boss, @NASA Administrator, Astronaut and Marine; Charles Bolden. A #BHM moment of reflection on the…”

Researchers have found strong evidence that racism helps the GOP win

In thousands and thousands of unmarked cemeteries throughout the South, the gradual decay of human remains forms shallow depressions in the earth. There is no comprehensive list of such sites, and many have been destroyed. Still, in places such as Charlotte and Orange and Bedford and Hendersonville …


Marathon space flight just the start for Scott Kelly, walking science experiment

Scott Kelly returned to Earth this week slightly taller than when he left it, irradiated, and with his eyesight changed from almost a year spent in space. He also arrived full of data for Nasa on how the space agency can take a person to Mars in the next 20 years.<p>On each of his 340 days on the …

Great Big Story

Event Horizon: How Space Changes Your Perspective On Life

Earth's true colors shine through to space (pictures)

NASA astronaut Scott Kelly captured our planet's vibrant colors from the space station and shared the gorgeous images on Twitter in a series called …