Awesome views, including some selfies, from the Mars Curiosity rover. The rover is looking across Gale Crater, approaching a large dune with ripples.
Catch up with all the news you can fit into outer space with EarthSky.org’s Deborah Byrd, LIVE on Slooh Wednesdays at 4 PM ET (2100 UTC). Or watch right here!
Theoretical calculations by a JPL astronomer suggest that streams of dark matter – passing through Earth – would emerge as ultra-dense filaments or “hairs.”
Mars’ large moon Phobos is slowly falling toward the planet. In 20-40 million years, it’ll shatter, and its pieces will form a Saturn-like ring around Mars.
Jupiter’s gravity slings long-period comets out of harm’s way, while nudging some asteroids closer to Earth. And, in 1770, Jupiter took aim on Earth – but missed.
And Jeff Bezos, which founded the private spaceflight company, sends his first-ever tweet. Congratulations, Blue Origin!
A lot of dark matter lies between us and these distant galaxies. Light distortion from gravitational lensing creates the “cat.”
The comet is up before dawn, getting higher and brighter each morning. An avalanche of pictures is expected this week as it ascends in the predawn sky.
All five visible planets will appear together in the morning sky early next year – from about January 20 to February 20, 2016. That hasn’t happened since 2005.
Measurements of the velocities of just six stars in a galaxy of only 1,000 visible stars suggest the highest concentration of dark matter of any known galaxy. Holy grail? Or is there another explanation?
“If we lived around a star like this one, we wouldn’t have any satellite communications. In fact, it might be extremely difficult for life to evolve at all …” said Harvard astrophysicist.
A ring or circle of light around the sun or moon is called a halo by scientists.
Hubble helped change our cosmology: our idea of the universe as a whole.
A mysterious and largely unknown dark energy is thought to pervade our universe. A telescope in West Texas is poised to survey a million galaxies, to explore it.
Astronauts are spending a year aboard the International Space Station, and researchers are looking at what happens to their bodies at the molecular level.
Kepler-438b – 470 light years from Earth – ranks highest on the Earth Similarity Index. But radiation from its violent parent star makes it uninhabitable.
No Mars rover has yet visited a sand dune, as opposed to smaller sand ripples or drifts. Curiosity will visit actual Mars dunes in the next few days.
Here are all the details you need for 2015’s Leonid meteor shower, peaking on the morning of November 18.
Astronomers had not considered the effect of variable stars on the light of distant galaxies. A new technique lets them measure the galaxies’ “heartbeats.”
The famous Leonid shower is coming up. Follow the links in this post to learn more about meteor showers for the rest of 2015.
Anniversary of the first radio message intentionally beamed outward. What do you think? Should we be advertising our presence in space?