BEST ASTRONOMY

Space / Astronomy News and Articles

Wed09202017

Last update01:23:23 PM GMT

Back Solar System Northern Lights

Northern Lights

NASA sees the sun having a solar blast

  • PDF
— The Sun unleashed an M-2 (medium-sized) solar flare, an S1-class (minor) radiation storm and a spectacular coronal mass ejection (CME) on June 7, 2011 from sunspot complex 1226-1227. The large cloud of particles mushroomed up and fell back down looking as if it covered an area of almost half the solar surface.

The Solar Dynamics Observatory (SDO) observed the flare's peak at 1:41a.m. ET (0641 UT). SDO recorded these...

— The Sun unleashed an M-2 (medium-sized) solar flare, an S1-class (minor) radiation storm and a spectacular coronal mass ejection (CME) on June 7, 2011 from sunspot complex 1226-1227. The large cloud of particles mushroomed up and fell back down looking as if it covered an area of almost half the solar...

Spectrometer Measures Auroras Impact On Ionosphere

  • PDF
— CHAMPAIGN, Ill. -- A new imaging spectrometer developed at the University of Illinois will assist scientists who are studying auroras and their effects upon Earth's atmosphere. By discerning spectral characteristics of auroral emissions as a function of altitude, the instrument will aid in the verification and refinement of atmospheric chemistry models.

Commonly referred to as "northern lights" or "southern...

— CHAMPAIGN, Ill. -- A new imaging spectrometer developed at the University...

Solar Flare Causes Intense Space Storm

  • PDF
— HOUSTON, Sept. 25, 1998 -- Rice University scientists report that a major geomagnetic storm began late on Sept. 24 and was continuing as of last Thursday. Intense auroral displays (the northern and southern lights) associated with the storm were reported at least as far south as Milwaukee.

The storm was tracked by a Rice University space weather model running at the National Oceanographic and Atmospheric...

— HOUSTON, Sept. 25, 1998 -- Rice University scientists report that a major...

Space Blobs Create Super-Speedy, Backward Auroras

  • PDF
— Blobs of electrified particles spew violently from the Sun, zoom at "warp speed" toward Earth's magnetic field, and trigger an unusual form of aurora, scientists have discovered using an ultraviolet camera on NASA's Polar spacecraft.

These electrified blobs, called coronal mass ejections, travel at more than 1.5 million miles per hour, or 2,000 times the speed of sound, and create interplanetary shock...

— Blobs of electrified particles spew violently from the Sun, zoom at...

FAST Spacecraft Discovers Invisible Aurora

  • PDF
— BERKELEY-- An invisible aurora exists as a companion to the familiar visible aurora, also known as the aurora borealis, or northern lights, in the Northern Hemisphere and the aurora australis (southern lights) in the Southern Hemisphere. Researchers using NASA's Fast Auroral Snapshot (FAST) spacecraft established the presence of the invisible aurora by consistently detecting upward flows of electrons interspersed ...

— BERKELEY-- An invisible aurora exists as a companion to the...