Einstein's theory of gravity—general relativity—has been very successful for more than a century. However, it has theoretical shortcomings. This is not surprising: the theory predicts its own failure at spacetime singularities ...
General Physics
Sep 25, 2023
90
1036
Mark your calendar. On Sunday, May 20th, the sun is going to turn into a ring of fire. It's an annular solar eclipse--the first one in the USA in almost 18 years.
Space Exploration
Jan 30, 2012
8
0
If you were fortunate enough to witness the recent total solar eclipse in all its glory, you might have noticed something surprising.
Cell & Microbiology
Sep 5, 2017
7
925
One year from now, on Monday, 8 April 2024, the moon will pass directly between Earth and the sun, creating a total solar eclipse like the one that crossed the United States from coast to coast on 21 August 2017. As it did ...
Astronomy
Apr 4, 2023
0
645
On April 8, the moon's shadow will sweep across the United States, as millions will view a total solar eclipse. For many, preparing for this event brings memories of the magnificent total solar eclipse on Aug. 21, 2017.
Planetary Sciences
Jan 30, 2024
0
39
Everyone knows that "the moon on the breast of new-fallen snow gives the luster of mid-day to objects below." That is, except during a lunar eclipse.
Space Exploration
Dec 17, 2010
8
0
A total solar eclipse plunged Antarctica from summer into darkness early Saturday in a rare astronomical spectacle witnessed by a handful of scientists and thrill-seekers—and countless penguins.
Space Exploration
Dec 4, 2021
2
2308
Paul Maley has spent much of his life chasing solar eclipses.
Planetary Sciences
Feb 26, 2024
0
69
Early in the morning of Sept. 1, 2016, NASA's Solar Dynamics Observatory, or SDO, caught both Earth and the moon crossing in front of the sun. SDO keeps a constant eye on the sun, but during SDO's semiannual eclipse seasons, ...
Space Exploration
Sep 2, 2016
0
985
For five months in mid 2017, Emily Mason did the same thing every day. Arriving to her office at NASA's Goddard Space Flight Center in Greenbelt, Maryland, she sat at her desk, opened up her computer, and stared at images ...
Astronomy
Apr 5, 2019
26
925
