Analysis of magnetic fields on the Sun's surface offers a new clue on why sunspots appear.
Space & Planets
Posted inFeatures
Hubble's Legacy: The Pillars of Creation
The Pillars of Creation remains to this day Hubble's most iconic view of the cosmos.
Posted inNews
Mercury's Secrets Revealed by Soon-to-Crash Spacecraft
From finding water ice on Mercury to discovering magnetic field lines cutting through the planet, NASA's MESSENGER spacecraft has spent its lifetime unveiling Mercury's secrets.
Posted inFeatures
Gazing Toward the Universe's Edge: Hubble's Deep Field Legacy
Hubble's sensitive cameras give scientists a chance to witness the birth of galaxies.
Posted inFeatures
The Art and Science of Hubble's Images
How do Hubble images get their vivid colors and subtle shading?
Posted inFeatures
Hubble Turns 25
Breathtaking images, groundbreaking science, and a demonstration of humankind's ability to work in space have made Hubble a cultural icon for a quarter of a century.
Posted inNews
Finding Debris Clouds Around Asteroids Headed Our Way
Small spikes in the solar system's magnetic field may help scientists detect overlooked and possibly dangerous debris clouds around near-Earth asteroids.
Posted inAGU News
Scherrer Receives 2014 Space Physics and Aeronomy Richard Carrington Award
Deborah Scherrer received the 2014 Space Physics and Aeronomy Richard Carrington Award at the 2014 American Geophysical Union Fall Meeting, held 15–19 December in San Francisco, Calif. The award is given in recognition of significant and outstanding impact on students' and the public's understanding of our science through education and/or outreach activities.
Posted inResearch Spotlights
Water Beneath the Surface of Mars, Bound Up in Sulfates
Researchers present maps of hydrogen and sulfur that hint at water locked in hydrous sulfates in Mars's southern hemispheric soil.
Posted inFeatures
Why Does the Aurora Flare Up?
The spectacular auroras that circle Earth's geomagnetic poles and burst with colorful displays during geomagnetic storms have mystified humanity for millennia. Now scientists are uncovering their secrets.