Thursday 27 April 2017

Intergalactic gas and ripples in the cosmic web

more »
A team of astronomers has made the first measurements of small-scale ripples in primeval hydrogen gas using rare double quasars.
via Science Daily
Zazzle Space Exploration market place

Using math to investigate possibility of time travel

more »
After some serious number crunching, a researcher says that he has come up with a mathematical model for a viable time machine: a Traversable Acausal Retrograde Domain in Space-time (TARDIS). He describes it as a bubble of space-time geometry which carries its contents backward and forwards through space and time as it tours a large circular path. The bubble moves through space-time at speeds greater than the speed of light at times, allowing it to move backward in time.
via Science Daily
Zazzle Space Exploration market place

Cassini spacecraft dives between Saturn and its rings

more »
NASA's Cassini spacecraft is back in contact with Earth after its successful first-ever dive through the narrow gap between the planet Saturn and its rings on April 26, 2017.
via Science Daily
Zazzle Space Exploration market place

Engineers investigate a simple, no-bake recipe to make bricks from Martian soil

more »
Explorers planning to settle on Mars might be able to turn the planet's soil into bricks without needing to use an oven or additional ingredients. Instead, they would need to apply pressure to compact the soil--the equivalent of a blow from a hammer.
via Science Daily
Zazzle Space Exploration market place

Lyrids in Southern Skies

more »
Earth's annual Lyrid meteor shower peaked before dawn on April 22nd, as our fair planet plowed through dust from the tail of long-period comet Thatcher. Seen from the high, dark, and dry Atacama desert a waning crescent Moon and brilliant Venus join Lyrid meteor streaks in this composited view. Captured over 5 hours on the night of April 21/22, the meteors stream away from the shower's radiant, a point not very far on the sky from Vega, alpha star of the constellation Lyra. The radiant effect is due to perspective as the parallel meteor tracks appear to converge in the distance. In the foreground are domes of the Las Campanas Observatory housing (left to right) the 2.5 meter du Pont Telescope and the 1.3 meter Optical Gravitational Lensing Experiment (OGLE) telescope.

Zazzle Space Gifts for young and old