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Einstein transformed our understanding of space and time.

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Albert Einstein.
Albert Einstein's Vision Transformed Our Understanding of Space and Time.

Planets - Moon, Mars, Venus and Saturn.

Four planets are gathering in the night time sky, and the view is spectacular. On the evening of April 22, look to the West just after it's starting to get dark; you'll see Venus blazing away just above a delicate crescent Moon. Mars is just above Venus, and Saturn is still higher. If you turn to the East, the brightest object in that direction is Jupiter. On Friday, the Moon will instead be beside Mars, and then beside Saturn on Saturday. To really enjoy the experience, get your hands on a telescope and see these incredible objects up close with your own eyes.

Arecibo radio observatory telescope in Puerto Rico.

The giant Arecibo radio observatory in Puerto Rico - already the largest and most sensitive single dish in the world - is getting an upgrade, which should make it even more powerful. In the past, Arecibo had the ability to look at one spot in the sky at a time, and so it took many observations to build up a comprehensive image. The newly attached ALFA (Arecibo L-Band Feed Array) works like a camera to let the observatory look at seven times the area in the same amount of time. This should dramatically speed up Arecibo's ability to gather data, and let it search for rarer objects, like pulsars orbiting black holes.

Saturn in Four Wavelengths.

The latest image of Saturn released from NASA's Cassini spacecraft shows the Ringed planet in four wavelengths: ultraviolet, visible blue, far red, and near infrared. The images were taken over the course of 20 minutes, and each one reveals a different aspect of Saturn's cloud cover and rings; probing the planet's atmosphere at different depths. When this photo was taken, Cassini was 44.5 million kilometres from Saturn and closing. It will reach the planet in July.

Einstein's Cosmos - Book Review.

We do live. We age. We move. time is how we refer to the transfer of ourselves from our beginning to end. Space is how we scale things through our primary sense of vision. Using the scientific method we can define iota that are so incredibly abstract as to be partly in our universe and partly somewhere else. We are also pretty sure that as we have a beginning and end so does the universe in which we live. Much of the basis from which we draw this understanding is directly attributable to Albert Einstein. In Michio Kaku's book, Einstein's Cosmos, How Albert Einstein's Vision Transformed Our Understanding of Space and Time we are taken on a wonderful brief journey through Einstein's life and the development of his theories that establish this basis.

Galaxy with a Ring of Star Formation.

Resembling a diamond-encrusted bracelet, a ring of brilliant blue star clusters wraps around the yellowish nucleus of what was once a normal spiral Galaxy in this new image from NASA's Hubble Space Telescope (HST). This image is being released to commemorate the 14th anniversary of Hubble's launch on April 24, 1990 and its deployment from the Space Shuttle Discovery on April 25, 1990.

The sparkling blue ring is 150,000 light-years in diameter, making it larger than our entire home galaxy, the Milky Way. The galaxy, cataloged as AM 0644-741, is a member of the class of so- called "ring galaxies." It lies 300 million light-years away in the direction of the southern constellation Dorado.

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