Researchers have long wondered why ancient people built the famous Easter Island monuments where they did.
The moon, planet Venus and giants of Easter Island, by Yuri Beletsky Nightscapes.
This year’s farthest apogee (moon’s farthest monthly point) comes on February 5, 2019, and the closest perigee (moon’s closest monthly point) occurs some 2 weeks later, on February 19, 2019.
If Earth didn’t have an atmosphere, the moon would be dark – perhaps even invisible – when entirely eclipsed within Earth’s shadow.
In 2019, there are 13 new moons and 12 full moons, but only 5 eclipses – 3 solar and 2 lunar.
Short-lived insects, like crickets, “get old,” – that is, lose some of their physical abilities – before they die, new research shows.
The may not go gray or get wrinkles around their eyes, but wild crickets do age, says a study. Image via Encyclopedia Brittanica.
Our sun’s planets orbit in a plane extending from the sun’s equator. Astronomers have found a double-star system whose planet-forming disk has flipped up – perpendicular to what we’d expect – over the poles. What would nature be like on one of these worlds?
Artist's impression of the view from an orbiting planet. Credit: University of Warwick/Mark Garlick
New clues from fossils from the oldest soils on Earth suggest that multicellular, land-dwelling organisms might have emerged much earlier than we thought.
Part of a quilted Ediacaran fossil is partly covered by ancient wind-drift from Namibia Image courtesy of Greg Retallack via University of Oregon.
New observations of Venus’ atmosphere by the Japanese orbiter Akatsuki – combined with supercomputer simulations – have revealed giant symmetrical streaks never seen before.
Lower clouds of Venus observed with the Akatsuki IR2 camera (left) and the planetary-scale streak structure reconstructed by AFES-Venus simulations (right). Image via Nature Communications paper. CC BY 4.0 https://creativecommons.org/licenses/by/4.0.
ESA’s Mars Express spacecraft began sending back images from its orbit around Mars in January 2004. Take 5 minutes to see some of the coolest images of the mission so far.
Mars south pole ice cap. Image via ESA/DLR/FU Berlin.