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Dec 26, 2017

Galaxies are fascinating not only for what is visible, but for what is invisible. Grand spiral galaxy NGC 1232, captured in detail by one of...
Dec 29, 2017

Interstellar dust clouds and glowing nebulae abound in the fertile constellation of Orion. One of the brightest, M78, is centered in this...
Jan 2, 2018

The point of contact for ROSES-2017 B.8 Magnetospheric Multiscale Guest Investigators has been changed to Terry Onsager. The Step-2 proposal due date...
Sun
Jan 2, 2018

Welcome to the Mysteries of the Sun. This unique NASA resource on the web, in print, and with companion videos introduces Heliophysics: the study of...
Sun, Earth’s Space Environment
Jan 2, 2018

Earth's Magnetosphere The magnetosphere protects the Earth from solar wind that streams from the Sun carrying energetic, charged...
Jan 6, 2018

Lately, bright Jupiter and fainter Mars have been easy to spot for early morning skygazers. Before dawn on January 7 the two naked-eye planets...
Jan 7, 2018

One of the greatest unrequited legends of outer space is the tether. Tethers, long strands of material, hold the promise of stabilizing...
Nov 9, 2017

This letter from SARA is to issue a waiver for grantees allowing them to be reimbursed out of their grants for their actual lodging, although it's...
Nov 13, 2017

Jim Green (Host): Our solar system is a wondrous place with a single star, our Sun, and everything that orbits around it: planets, moons, asteroids...
Solar System
Nov 20, 2017

Astronomers recently scrambled to observe an intriguing asteroid that zipped through the solar system on a steep trajectory from interstellar space—...

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