Space

How big is space? New facts from NASA about the El Gordo galaxy cluster blow our mind.

A visitor to the lab once asked Reeko how big space was and the lab tour had to be cancelled. In short, Reeko answered with “really, really, really big” but what he really did was add a bunch of “reallys” to make the point that space was “really big”. There were so many “reallys” that after about 20 minutes, the visitors got anxious (one thought Reeko was having a “spell”) and the entire tour had to be called off for the day. For kids that have visited the lab, this explains why the sign at the entrance says “Be curious – ask any question you want (except for how big space is)”. Fact is, space is really, really big with about oh, one thousand “reallys”…
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Space

NASA’s Cassini spacecraft provides evidence of an ocean of water underneath Saturn’s moon

Scientists had long thought that Saturn’s moon Enceladus had an ocean of liquid water underneath its thick, icy surface (in 2004, NASA scientists saw water vapor and ice spewing from vents near the moon’s south pole). Today. NASA’s Cassini spacecraft revealed actual evidence that their theory was correct – an ocean lies hidden inside the moon. NASA scientists discovered the evidence by deducing gravity variations using the Doppler Effect (the same principle used in our earthly radar systems). NASA’s Jet Propulsion Laboratory explained: “As the spacecraft flies by Enceladus, its velocity is perturbed by an amount that depends on variations in the gravity field that we’re trying to measure. We see the change in velocity as a change in radio frequency, received at our ground…
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