For thousands of years, astronomers have watched comets travel close to Earth and light up the night sky. In time, these observations led to a number of paradoxes. For instance, where were these comets all coming from? And ...
Space Exploration
Aug 11, 2015
1
27
Halley's Comet, also known as 1P/Halley, is the most well known comet in the Solar System. As a periodic (or short-term comet) it has orbital period that is less than 200 years, and has therefore been observed more than once ...
Space Exploration
Jun 15, 2015
3
42
Want to hear something cool? There's a black hole at the center of the Milky Way. And not just any black hole, it's a supermassive black hole with more than 4.1 million times the mass of the Sun.
Astronomy
Aug 16, 2016
1
45
Scientists from Ireland and France today announced a major new finding about how matter behaves in the extreme conditions of the Sun's atmosphere.
Astronomy
May 24, 2019
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3962
A team of astronomers, including associate professor Chad Trujillo of Northern Arizona University's Department of Astronomy and Planetary Science, have confirmed a planetoid that is almost four times farther from the Sun ...
Astronomy
Feb 10, 2021
3
14134
If the sun, Earth and moon are lined up, shouldn't we get a lunar and solar eclipse every month? Clearly, we don't, but why not?
Space Exploration
Nov 16, 2015
0
23
If you've read your share of sci-fi, and I know you have, you've read stories about another Earth-sized planet orbiting on the other side of the Solar System, blocked by the Sun. Could it really be there?
Astronomy
Feb 24, 2015
31
139
Sometimes, the best place to hide a secret is in broad daylight. Just ask the sun.
Astronomy
Aug 3, 2023
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1868
It's is no secret that Earth is the only inhabited planet in our Solar System. All the planets besides Earth lack a breathable atmosphere for terrestrial beings, but also, many of them are too hot or too cold to sustain life.
Astronomy
Dec 16, 2014
3
1
Many coronal loops—ropey strands of plasma that scientists have long thought existed in the Sun's atmosphere—may actually be optical illusions, according to a new paper that challenges prevailing assumptions of what we ...
Astronomy
Mar 2, 2022
3
625
