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Spider Crater in Caloris Basin on the planet Mercury. NASA's Messenger probe took the picture of this dramatic impact crater. It looks a bit like a spider waiting in the middle of its web. Mona Evans, "Cosmic Halloween Tour" http://www.bellaonline.com/articles/art52161.asp

The spectacular image shown here is one of the first to be returned from MESSENGER's second flyby of Mercury. The image shows the departing planet taken about 90 minutes after the spacecraft's closest approach. The bright crater just south of the center of the image is Kuiper, identified on images from the Mariner 10 mission in the 1970s.

Hemispheric View of Venus Date: 4 Jun 1998 The hemispheric view of Venus, as revealed by more than a decade of radar investigations culminating in the 1990-1994 Magellan mission, is centered at 180 degrees east longitude. The Magellan spacecraft imaged more than 98 percent of Venus at a resolution of about 100 m; the effective resolution of this image is about 3 km.

Computer Simulated Global View of Venus Date: 29 Oct 1991 This global view of the surface of Venus is centered at 180 degrees east longitude. Magellan synthetic aperture radar mosaics from the first cycle of Magellan mapping are mapped onto a computer-simulated globe to create this image. Last Update: 11 Jul 2011 (AMB) Credit: NASA/JPL

Water Ice on Mercury: Water ice deposits found in frozen craters on planet Mercury are explained in this #infographic

Mariner 10's Venus Date: 5 Feb 1974 Made using an ultraviolet filter in its imaging system, the photo has been color-enhanced to bring out Venus's cloudy atmosphere as the human eye would see it. Venus is perpetually blanketed by a thick veil of clouds high in carbon dioxide and its surface temperature approaches 900 degrees Fahrenheit. Launched on 3 Nov. 1973 atop an Atlas-Centaur rocket, Mariner 10 flew by Venus in 1974. Last Update: 7 Apr 2011 (AMB) Credit: NASA

TIME.comfrom TIME.com

It's Always 4th of July in the Universe

This looks more like a threatening ghost than either the dear old Horsehead Nebula or anything to do with the Fourth! But it's a Hubble Space Telescope infrared image of the Horsehead Nebula. (Credit: STScI/AURA/ESA/NASA) Mona Evans, "Cosmic Halloween Tour" http://www.bellaonline.com/articles/art52161.asp

Morning Star Date: 4 Mar 2013 Dawn on Saturn is greeted across the vastness of interplanetary space by the morning star, Venus, in this image from NASA's Cassini spacecraft. Venus appears just off the edge of the planet, in the upper part of the image, directly above the white streak of Saturn's G ring. Lower down, Saturn's E ring makes an appearance, looking blue thanks to the scattering properties of the dust that comprises the ring. A bright spot near the E ring is a distant star.

Hollows on Mercury: NASA's MESSENGER spacecraft discovered strange hollows on the surface of Mercury. Images taken from orbit reveal thousands of peculiar depressions at a variety of longitudes and latitudes, ranging in size from 60 feet to over a mile across and 60 to 120 feet deep. Last Update: 29 Feb 2012 (AMB) Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

Perseus Cluster’s X-Ray Skull. [Credit: A. Fabian (IoA Cambridge) et al., NASA] Although it looks like something in torment, it’s just an X-Ray image of the Perseus Cluster of Galaxies. It doesn’t show the galaxies, only the X-rays given out by the gas between the galaxies. Mona Evans, "Cosmic Halloween Tour" http://www.bellaonline.com/articles/art52161.asp

The Crater Farm Date: 29 May 1991 In a Magellan image dubbed the "Crater Farm" we see the curious layering of volcanic activity and impact craters. Three impact craters are displayed in this three-dimensional perspective view of the surface of Venus. The center of the image is located at approximately 27 degrees south latitude, 339 degrees east longitude in the northwestern portion of Lavinia Planitia.

Boston.comfrom Boston.com

The Sun

The image shows the corona for a moderately active Sun, with some (red) hot active regions in both hemispheres, surrounded by the (blue/green) cooler plasma of the quiet-Sun corona. Notice also the north polar-crown filament, the trans-equatorial loops, and the coronal hole in the south-east (lower-right) corner of the image and the smaller one over the north pole. This image shows the solar corona in a false-color, 3-layer composite: the blue, green, and red channels show the 171Å, 195Å…

Located approximately 300 million light-years away in the constellation of Volans, AM 0644-741 is one of the most spectacular ‘Ring Galaxies’ currently know. - Image Credit: NASA, ESA, and The Hubble Heritage Team (AURA/STScI)