Taxonomy term

barry e. digregorio

A journey to Pluto and beyond with New Horizons

NASA’s New Horizons spacecraft, the first mission to Pluto, will reach the former planet on July 14, 2015. After that, it will fly by the Kuiper Belt to explore the most distant bodies in the solar system.

22 Mar 2015

Rosetta: Off to decipher a comet's secrets

“Hello World.”

With that brief message, scientists at the European Space Agency (ESA) and followers around the world sent up a collective cheer. Rosetta — the ESA spacecraft currently on a 10-year mission to orbit and land on a comet — awoke in January after a three-year hibernation, and was ready to work.

23 Jun 2014

Down to Earth With: Neil Armstrong: First astrogeologist on the moon

One year ago this month, Neil Armstrong died in Cincinnati, Ohio, at the age of 82. Armstrong will be forever remembered for that historic first step he took on the moon on July 20, 1969, but he also held another distinction: He was the first person to explore the geology of another planetary body.

President John F. Kennedy mandated in his famous 1961 speech at Rice Stadium in Texas that the primary goal of the Apollo program was to land humans on the moon and return them safely to Earth before the end of the decade. The science mission was an important, but secondary, goal.

04 Aug 2013

Tracking plastic in the oceans

Despite worldwide efforts to curtail plastic use — to ban plastic grocery bags, to switch to reusable water bottles instead of disposable plastic bottles, and to get rid of the microplastics in cosmetics, for example — we still produce more than 260 million tons of plastic each year. Almost a third of that plastic goes into disposable, one-time-use items. Only about 1 percent of it is recycled globally, so much ends up in landfills. Worse still, some of the plastic winds up in the world’s oceans.

24 Jan 2012