The Dyson Sphere and the Search for Alien Life
|An Artist's Imagination of a Dyson Sphere. Source|
From Quarks to Quasars
For decades now, the people at SETI (Search for extraterrestrial intelligence) have been scouring the skies looking for evidence that suggests the universe is occupied by beings other than humans. Besides a few promising mysterious signals (most famously, the “WOW Signal” that was detected in 1977) with unknown origins, the search has largely come up empty handed.
If intelligent beings exist, where are they? Why aren’t we picking up their radio signals? Are they picking up ours? Perhaps they’re out there, but we’re just not looking in the right place> Perhaps we don’t even know what to look for, and we could be looking directly at it without realizing what we’ve found? Read More
Comet Ison, the Zombie Comet That Refuses to Die
From Quarks to Quasars.
It is now confirmed; the reports of ISON’s demise have been greatly exaggerated. It is still kicking, and it’s still very bright.
We had a flurry of predictions yesterday regarding the fate of the famous comet. Initially, ISON disappeared completely from our field of view, leading many astronomers to speculate that the comet had completely disintegrated just before it’s rendezvous with the Sun. A faint trail of something had started to reemerge on the other side of the Sun. This was either a continuation of the Comet’s tail or ISON itself.
After further analysis, and the collection of more data, it looks like some part of ISON managed to survive. ISON has continued to defy everything we know about comets and science; as it travels farther away from the sun, it continues to brighten steadily after having completely vanished from view only a day earlier. Read More
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