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Apr 24, 2023
Earth Poster
Earth Poster (print resolution)Earth Poster (low resolution, 508 compliant)
Moon Poster
Moon Poster (print...
Universe, Citizen Science
Apr 21, 2023
The massive, 30-foot diameter Hobby-Eberly Telescope, in Davis Mountains, Texas. (credit: EricandHolli, CC BY-SA 3.0)
April is Citizen Science...
Apr 21, 2023
Along a narrow path
that mostly avoided landfall,
the shadow of the New Moon raced across planet Earth's
southern hemisphere
on April 20 to...
Apr 19, 2023
On some nights the sky is the best show in town.
On this night,
auroras ruled the sky, and the
geomagnetic storm that created this...
Universe, Citizen Science
Apr 18, 2023
The 999 targets of the TESS Triple-9 Catalog II, displayed according to their period and radius. Cyan dots represent the planet candidates (PCs)...
Apr 18, 2023
Would you like to see a total eclipse of the Sun?
If so, do any friends or relatives live near the
path of next April's eclipse?
If yes...
Lunar Discovery
Apr 17, 2023
When it is released in its final form, F.12 Artemis III Deployed Instruments (A3DI) will solicit both standalone instruments and instrument suites to...
Apr 17, 2023
What's that red ring in the sky?
Lightning.
The most commonly seen type of
lightning
involves flashes of
bright white light between...
Apr 15, 2023
A composite of images
captured about a week apart
from mid August 2022 through late March 2023,
this series traces the
retrograde motion of...