... Aurora from Space . ... Magnetic Storms . ... The "ring of fire" seen by satellite cameras around the polar caps (picture below) is probably created by electrons leaking from the tail's plasma sheet, whose magnetic field lines form a somewhat imperfect trap. ... One possible explanation involves the close association between auroral arcs and electric currents which flow along field lines between the ionosphere and distant space ( Birkeland currents ). ... Why no aurora at the magnetic poles? ...

... Aurora from Space . ... Magnetic Storms . ... The "ring of fire" seen by satellite cameras around the polar caps (picture below) is probably created by electrons leaking from the tail's plasma sheet, whose magnetic field lines form a somewhat imperfect trap. ... One possible explanation involves the close association between auroral arcs and electric currents which flow along field lines between the ionosphere and distant space ( Birkeland currents ). ... Why no aurora at the magnetic poles? ...

... Microwave Hotspots: The Oldest Structures Known . ... They are seen on the above two images of the microwave sky, north and south of our galaxy's equator, based on four-year's worth of data from NASA's COsmic Background Explorer (COBE) satellite (1989-1993). ... Close To Eros . ... The lonely RX J1856.5-3754 was formed from the collapsed core of an exploding star. ... Many stars like our Sun were formed in open clusters. ... The stars in this cluster all formed together about 150 million years ago. ...

Microsymposium 34, MS047, 2001 SOME PROBLEMS OF THE EVOLUTION OF ASTEROIDS ­ RUBBLE PILE. ... Evidently, we can distinguish two processes: distant interactions, where there is no direct contact between separate fragments, and close contact interactions, where the fragments collide with one another. ... Such a rubble pile with a dust atmosphere differs from a cometary nucleus only in the absence of a volatile gas component, which is usually considered the cause of the appearance of cometary dust. ...

... Team makes first direct measurement of distant galaxy's magnetic field . ... Using a powerful radio telescope to peer into the early universe, a team of California astronomers has obtained the first direct measurement of a nascent galaxy's magnetic field as it appeared 6.5 billion years ago. ... Until recently, astronomers knew very little about magnetic fields outside our own galaxy, having directly measured the magnetic field in only one nearby galaxy. ... Magnetic fields stronger than expected . ...

Direct Electron Imaging Using Back Thinned CCDs . ... Figure 5. Measured CTF for GaAs SI502AB EBCCD for various acceleration energies @ 1*10 -4 footcandles faceplate illumination using a 590 nanometer wavelength source. ... Contrast transfer function was measured on both EBCCD tubes as a function of both acceleration voltage and light level. ... A difference frame of two identical flat field frames at a 'high' light level was used for the measurement of variance versus mean in the EBCCD tube. ...

... NVIDIA, the NVIDIA logo, NVIDIA nForce, GeForce, NVIDIA Quadro, Vanta, TNT2, TNT, RIVA, RIVA TNT, Quincunx Antialiasing, and TwinView are registered trademarks or trademarks of NVIDIA Corporation in the United States and/or other countries. Linux is a registered trademark of Linus Torvalds. ... OpenGL is a registered trademark of Silicon Graphics Inc. ... Installing the NVIDIA Driver . ... Configuring X for the NVIDIA Driver . Using nvidia-xconfig to configure the X server . ...

... JWST . ... Science Blog . ... JWST Overview . ... This table shows all the SODRM Distant Galaxies and Cosmology Science programs. The columns list the current SODRM program number, the estimated total time (exposure and direct overheads), the title, the instruments used, the program lead, the previous SODRM number (if applicable), and the SRD science "program." ... JWST Ultra-wide NIRCam and MIRI Mosaic of the Extended Groth Strip . ... JWST NIRCam and MIRI Mosaic of the Chandra Deep Field South . ...

... Science . ... Science Users Information > Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Towards a direct measurement of the expansion history of the Universe . ... Science Users Information . ... Observing with ESO Telescopes . ... Science Software . ... ESO Science Newsletter . ... The E-ELT will allow us, for the first time, to perform a direct and dynamical measurement of the expansion history of the Universe. ... Return to list of thesis topics . ...

Blackholes2 Forum Message . ... Distant Galaxy Red Shift Caused By Time Passage Variation. ... If I were falling toward a neutron star or a black hole, a distant galaxy would seem to be accelerating toward me? ... And apparent receding distant galaxies with a red shift. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... 2005 April 5 . Light From A Distant Planet . Illustration Credit: R. Hurt ( SSC-Caltech ), JPL-Caltech , NASA . Explanation: Light emitted by a planet far beyond our Solar System has been identified for the first time. The planet, illustrated in the above drawing , had its light detected by comparing the brightness of only the parent star, when the planet was behind the star, to the light emitted when both the planet and its parent star were visible. ... About APOD | ...

... Over the last decade the uninterrupted, high-resolution cove