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Supporting data: Voids found in bedrock resemble "vugs" which are left by eroded away, disk-shaped crystals, possibly dissolved in a watery environment. Quote from Steve Squyres: The second piece of evidence is that when we looked at it close-up, it was shot through with tabular holes. Familiar forms.
The Alpha particle X-ray spectrometer (APXS) found rather high levels of phosphorus in the rocks. Similar high levels were found by other rovers at Ares Vallis and Gusev crater, so it has been hypothesized that the mantle of Mars may be phosphorus-rich. [13] The minerals in the rocks could have originated by acid weathering of basalt.
It refers to the position of a penis as it relates to pathology on an X-ray of a pelvis. When the penis (visible on the X-ray as a shadow) points towards the same side as a unilateral medical condition such as a broken bone, this is considered a "positive John Thomas sign," and if the shadow points to the other side, it is a "negative John ...
The two Mars exploration rovers each carry an Alpha Particle X-ray Spectrometer , a thermal emission spectrometer , and Mössbauer spectrometer to identify minerals on the surface. On October 17, 2012, the Curiosity rover on the planet Mars at " Rocknest " performed the first X-ray diffraction analysis of Martian soil .
The "soft" name arises because in many cases there is strong soft (i.e. low-energy) X-ray emission from an accretion disk close to the compact object, although there are exceptions which are quite hard. [4] Soft X-ray transients Cen X-4 and Aql X-1 were discovered by Hakucho, Japan's first X-ray astronomy satellite to be X-ray bursters. [5]
The mineral gypsum is the best match for the data. It likely formed from mineral-rich water moving through a crack in the rock. The vein, called "Homestake," is in Mars' Meridiani plain. Homestake is in a zone where the sulfate-rich sedimentary bedrock of the plains meets older, volcanic bedrock exposed at the rim of Endeavour crater. [53]
A method of determining the arrangement of atoms within a crystal, in which a beam of X-rays strikes a crystal and diffracts into many specific directions. X-ray fluorescence (XRF) The emission of characteristic "secondary" (or fluorescent) X-rays from a material that has been excited by bombarding with high-energy X-rays or gamma rays.
A high-mass X-ray binary (HMXB) is a binary star system that is strong in X rays, and in which the normal stellar component is a massive star: usually an O or B star, a blue supergiant, or in some cases, a red supergiant or a Wolf–Rayet star. The compact, X-ray emitting, component is a neutron star or black hole. [1]