New lunar research answers old questions, poses others

From its close perch in the sky, the moon has long mystified artists, lovers and scientists. Now a quartet of recent papers — all of which touch on the moon’s violent birth and turbulent infancy — may help scientists put two long-standing lunar mysteries to rest, while deepening a third enigma and suggesting a speculative solution to a fourth.

23 Oct 2014

Harpooning space debris

Harpooning was first used to spear fish, and later whales, but has yet to be used in space. Now, the European Space Agency (ESA) is considering the ancient technique to capture rogue satellites interfering with important orbits.

18 Oct 2014

Mercury formed by hit and run?

The solar system was once as busy as a store parking lot on Black Friday. Collisions were common in the early days, and new evidence of a hit-and-run scenario may explain some of Mercury’s peculiarities.

17 Oct 2014

Cassini spots new moon in Saturn's rings

Saturn is famous for its rings, but the sixth planet from the sun also has dozens of moons — 62 at last count, 53 of which have names — and now, according to new observations, it may have a 63rd. In April of last year, NASA’s Cassini spacecraft spotted a newly formed object at the edge of Saturn’s outermost A ring.

08 Oct 2014

Saturn's polar hexagon stable over time

Saturn’s peculiar polar “hexagon” has proven perplexing for scientists studying the atmospheric phenomenon since Voyager 1 and 2 first observed it in the early 1980s. Now, an international team has completed the most thorough study of the six-sided jet stream yet, using images and data collected between 2008 and 2014 by the Cassini spacecraft.

07 Oct 2014

High-powered simulation tracks evolution of universe in detail

The universe burst into existence 14.6 billion years ago, and has been expanding ever since. Of course, humans have only been around to glimpse the most recent fraction of stellar history. Now, a new high-powered computer simulation called Illustris, which traces more than 13 billion years of cosmological evolution, is giving scientists and the public alike an armchair view of how things came to look the way they do.

26 Sep 2014

Students send experiments to the International Space Station

As Orb-2, the latest mission to resupply the International Space Station (ISS), lifted off on July 13, no one at NASA’s Mid-Atlantic Regional Spaceport on Wallops Island, Va., was more thrilled than 16 elementary and high school students whose scientific experiments were on board the Cygnus spacecraft. The fifth through 12th graders represented 15 teams totaling 99 students from across the United States whose proposals had survived a rigorous screening program.

19 Sep 2014

Red Planet Roundup: September 2014

As Curiosity and Opportunity rove around Mars, the Mars Reconnaissance Orbiter (MRO), Mars Express and Mars Odyssey orbit above, and scientists on Earth study the Red Planet from afar, new findings are announced almost weekly. Here are a few of the latest updates.

12 Sep 2014

Twinkle, twinkle new little star

What’s red, sparkly and far from home? Not Dorothy’s shoes, but a Thorne-Zytkow object (TZO), a type of hybrid star theorized since 1975 to exist but not observed until now.

10 Sep 2014

Unprecedented low water-vapor levels detected on exoplanets

In a recent study, a team of astronomers found that the atmospheres of Jupiter-sized planets located outside of the solar system are much drier than predicted. The discovery has raised questions about the commonly held understanding of the processes involved in planet formation.

13 Aug 2014