HAARP artificial airglow may be widely visible in Alaska

Alaskans and visitors may be able to see an artificial airglow in the sky created by the High-frequency Active Auroral Research Program during a four-day research campaign that starts Saturday.

Solar sails could reach Mars in just 26 days

A recent study submitted to Acta Astronautica and currently available on the arXiv preprint server explores the potential for using aerographite solar sails for traveling to Mars and interstellar space, which could dramatically ...

Mapping the sun's interaction with Mercury's surface

A new study maps the infall of protons and electrons from the solar wind to geographical location on the surface of Mercury, giving scientists new insight into how interactions with the sun alters the surface and produces ...

Developing a jellyfish-inspired ocean sensor

Using a design inspired by one of the ocean's best sailors, a team of scientists at the Johns Hopkins Applied Physics Laboratory is developing a low-cost sensor for ocean observations. The sensors are modeled after Velella ...

NASA animation sizes up the universe's biggest black holes

A new NASA animation highlights the "super" in supermassive black holes. These monsters lurk in the centers of most big galaxies, including our own Milky Way, and contain between 100,000 and tens of billions of times more ...

page 2 from 7