Hubble Supernova HD

NASA's Hubble Space Telescope (HST) has obtained the best images yet of a mysterious mirror- imaged pair of rings of glowing gas that are encircling the site of the stellar explosion supernova 1987A.

One possibility is that the two rings might be "painted" by a high-energy beam of radiation or particles, like a spinning light- show laser beam tracing circles on a screen.

The source of the radiation might be a previously unknown stellar remnant that is a binary companion to the star that exploded in 1987. Images taken by Hubble show a dim object in the position of the suspected source of the celestial light show.

"The Hubble images of the rings are quite spectacular and unexpected," says Dr. Chris Burrows of the European Space Agency and the Space Telescope Science Institute in Baltimore, Maryland. Burrows used Hubble's Wide Field Planetary Camera 2 to image the rings in February 1994.

The striking Hubble picture actually shows three rings. The smaller "center" ring of the trio was seen previously. The larger pair of outer rings were also seen in ground-based images, but the interpretation was not possible until the higher resolution Hubble observations.

Though all of the rings probably are inclined to our view (so that they appear to intersect), they probably are in three different planes. The small bright ring lies in a plane containing the supernova; the two rings lie in front and behind it.

Sexo en el Espacio

A medida que el ser humano coloniza el cosmos, es necesario tener en cuenta la realidad de las relaciones sexuales y la reproducción. Investigaremos los desafíos fisiológicos, psicológicos y culturales del sexo en el espacio. Desde el acto sexual al nacimiento, observaremos cómo las condiciones extremas en las que se desarrolla la exploración espacial podrían afectar a la copulación, la concepción y el desarrollo de los tejidos humanos; y estudiaremos el posible impacto de los temas relativos al sexo en las vidas emocionales de los astronautas. Asimismo, investigaremos los rumores minuciosamente para averiguar si el sexo en el espacio ya ha tenido lugar y veremos cómo el creciente negocio del turismo espacial puede conducir pronto a un boom del sexo en el espacio.

Faster Than The Speed Of Light

Diseño de Vehículos Espaciales: 6. Re-Entrada Atmosférica

Space Vehicle Design: 6. Atmospheric Entry

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GRAIL "Rings" in 2012 on This Week @NASA

VIDEO JPL/NASA Grial Mission

Weekly ISS Recap - Jan. 2-6, 2012

Por Las Buenas - Sociedad Julio Garavito.

No hay que negarlo, escuchar la frase Sociedad Julio Garavito, suena como a algo extraño, pero no hay por qué preocuparse, allí no hacen nada del otro mundo aunque sí tienen que ver con él, bueno si se piensa que el otro mundo es el que está por fuera del nuestro, mejor dicho vea Por Las Buenas este domingo, allí le aclararemos todo.

The Lunar Crater of Julio Garavito Armero

Video showing the Garavito Crater on the far side of the Moon. This crater was named after the Colombian astronomer Julio Garavito Armero. Images and maps are a courtesy from NASA. Music being used is under a 3.0 Creative Commons License. For more information please watch credits at the end of this video. ESTE VIDEO TAMBIÉN ESTÁ DISPONIBLE EN ESPAÑOL.
Related article on the blog of ASTRONOMY RADAR: http://astroradar.blogspot.com/2010/02/lunar-crater-of-julio-garavito-armero....

Colonias Espaciales - Asentamientos Lunares: 8. El Papel Futuro del Manejo del Recurso Humano en Asentamientos No Terrestres - Algunos Pensamientos

Space Colonies- Lunar Settlements: Chapter 8. The Future Role Of Human Resource Managment In Non Terrestrial Settlements - Some Preliminary Thoughts

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Un universo desde la nada por Lawrence Krauss AAI 2009 (Subtitulado)

Buenas

Acá les mando un video de la charla Un Universo Desde la Nada por Lawrence Krauss en AAI 2009 (Subtitulado)
https://www.youtube.com/watch?v=Fs_MwYZHm7g&feature=player_embedded#!

Carlos Eduardo Correa Hernández

What's Up for January 2012?

Materiales AeroEspaciales: 5. Polímeros de Alto Desempeño Y Compuestos Avanzados Para Aplicación Espacial

Aerospace Material: Chapter 5. High Performance Polymers And Advanced Composites For Space Application

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Year On Earth

[GRAIL] Launch of GRAIL Spacecraft on Delta II

Sistemas Microelectromecánicos (MEMS) y Microestructuras en Aplicaciones Espaciales: 7. Microtecnologías Para Aplicación De Instrumentación Científica

MEMS and Microstructures in Aerospace Applications: Chapter 7. Microtechnologies For Science Instrumentation Applications

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Happy New Year! / Earth 2012

Control Térmico de Naves Espaciales: 10. Suiches de Calor - Suiches Térmicos

SNC's Space Systems is the world’s leading supplier of thermal switches for spacecraft. These devices will passively open or close a thermal connection at a particular temperature set point, allowing for payloads with variable heat loads to be passively controlled to a precise temperature. These devices are provided as stand-alone switches, or combined with a thermal radiator to provide a complete thermal solution.
http://spacedev.com/components_mechanisms.php

Spacecraft Thermal Control: 10. Heat Switches

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A fused thermal switch from Apollo Service Module oxygen tank after test at the NASA Manned Spacecraft Center simulatign Apollo 13 de-tanking procedures.
Catalog Date: 06 January 1970
Film Type: 4x5 BW
NASA image: S70-40850
http://www.apolloexplorer.co.uk/photo/html/as13/10075548.htm


Thermal Switch installed on a cryostat base.

http://mechanical-engineering.esa.int/thermal/thermalswitches.html

Russian Phobos-Grunt Satellite Reentry

Mecánica Orbital: 10. Aplicaciones De Las Perturbaciones Orbitales

Figure 1. Primary orbital components are displayed on the left, and Cenozoic paleogeography on the right. The gravitational forces exerted by other celestial bodies affect Earth's orbit. As a result, the amount and, more importantly, the distribution of incoming solar radiation oscillate with time (123). There are three orbital perturbations with five periods: eccentricity (at 400 and 100 ky), obliquity (41 ky), and precession (23 and 19 ky). (A) Eccentricity refers to the shape of Earth's orbit around the sun, varying from near circular to elliptical. This effect on insolation is very small, however, and by itself should not account for changes in Earth's climate during the past. (B) Obliquity refers to the tilt of Earth's axis relative to the plane of the ecliptic varying between 22.1° and 24.5°. A high angle of tilt increases the seasonal contrast, most effectively at high latitudes (e.g., winters in both hemispheres will be colder and summers hotter as obliquity increases). (C) Precession refers to the wobble of the axis of rotation describing a circle in space with a period of 26 ky. Modulated by orbital eccentricity, precession determines where on the orbit around the sun (e.g., with relation to aphelion or perihelion) seasons occur, thereby increasing the seasonal contrast in one hemisphere and decreasing it in the other. The effect is largest at the equator and decreases with increasing latitude. The periods of the precessional signal modulated by eccentricity are 23 and 19 ky, the periods observed in geological records. (D) Continental geography reconstructed for five intervals of the last 70 My designed using the commercial Paleogeographic Information System).

Orbital Mechanics: 10. Applications Of Orbit Perturbations

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