Astronomy

Active Erosion in Martian Crater

Active Erosion in Pasteur Crater by the Martian wind

This image from HiRISE (High Resolution Imaging Science Experiment) camera on board the Mars Reconnaissance Orbiter, shows knobs and bluffs that are being actively eroded in Pasteur Crater by the Martian wind.

Fly me tiwice to the Moon

Two aircraft met up in the sky across the waxing gibbous Moon

Two aircraft met up in the sky to fly across the waxing gibbous MoonPhotographer John Chumack,  via universetoday by Nancy Atkinson

By |February 29, 2012|Categories: Astronomy, Aviation|Tags: , |

A forthcoming Supernova

Eta Carinae stellar system

NASA’s Hubble Telescope captured an image of Eta Carinae about 7,500 to 8,000 light-years from the Sun. This image consists of ultraviolet and visible light images from the High Resolution Channel of Hubble’s Advanced Camera for Surveys.

Alignment of planets to create spectacular show

Alignment of planets on Feb. 25 and 26

The brightest planets in the night sky are aligning for a must-see show. The moon, Venus, and Jupiter shortly after sunset both Feb. 25 and 26, coming together in a tight triangle. With any luck, you might also spot tiny Mercury down near the horizon just as the sun goes down. Start looking tonight!

By |February 25, 2012|Categories: Astronomy|Tags: |

A large cloud of particles by Solar eruption

A large cloud of particles by Solar eruption on Feb. 9-10

By combining observations from several instruments, we can see an initial solar eruption and the ensuing, large cloud of particles that blasted into space over a 10-hour period (Feb. 9-10, 2012). Credit: NASA/GSFC/STEREO

Black Hole’s high-speed wind

Black Hole IGR J17091 high-speed wind

This artist’s impression shows a binary system containing a stellar-mass black hole called IGR J17091-3624, or IGR J17091 for short. The strong gravity of the black hole, on the left, is pulling gas away from a companion star on the right. This gas forms a disk of hot gas around the black hole, and the wind is driven off this disk.

Keck Telescopes in motion

Keck Telescopes in motion in Mauna Kea Hawai

Keck Observatory operates two ten-meter telescopes atop the summit of Mauna Kea Hawai’i. Keeping those telescopes on-sky every night is the summit crew of the Operations Department. This video is dedicated to the guys of the Keck daycrew who make it possible.

By |February 23, 2012|Categories: Astronomy|Tags: , , , |

Hubble reveal strange Exoplanet

Hubble reveal strange Exoplanet GJ 1214b

Observations by the NASA/ESA Hubble Space Telescope have come up with a new class of planet, a waterworld enshrouded by a thick, steamy atmosphere. It’s smaller than Uranus but larger than Earth.

A Message from Earth

A Message from Earth from the Arecibo Observatory

The above message was broadcast from Earth towards the globular star cluster M13 in 1974. During the dedication of the Arecibo Observatory – still the largest single radio telescope in the world – a string of 1’s and 0’s representing the above diagram was sent.

Swirling Aurora by Jason Ahrns

Swirling Aurora in Fort Yukon, Alaska

Jason Ahrns captured this beautiful image of the Aurora from Fort Yukon, Alaska. The aurora was caused by an unexpected geomagnetic storm that took place on February 15, 2012. He used a Nikon D7000 camera in taking this photo.  via universetoday  by Dianne Castaneda

By |February 21, 2012|Categories: Astronomy, Natural phenomena|Tags: , , , |