March 14 marks the annual celebration of the mathematical constant pi, aka the Greek letter π. Its infinite number of digits is usually rounded to 3.14, hence the date of Pi Day. For some people, the occasion marks an annual ...
Mathematics
Mar 8, 2024
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37
When it was first discovered in 2004, Apophis was identified as one of the most dangerous asteroids in that there was a risk that it could impact Earth. But that impact assessment changed over the years after astronomers ...
Astronomy
Mar 4, 2024
2
151
A frequent idea in sci-fi and apocalyptic films is that of an asteroid striking Earth and causing global devastation. While the probabilities of this kind of mass extinction occurring on our planet are incredibly small, they ...
Space Exploration
Feb 27, 2024
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181
Life on our planet appeared early in Earth's history. Surprisingly early, since in its early youth our planet didn't have much of the chemical ingredients necessary for life to evolve. Since prebiotic chemicals such as sugars ...
Astrobiology
Feb 26, 2024
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13
A study recently submitted to The Astronomical Journal continues to search for the elusive Planet Nine (also called Planet X), which is a hypothetical planet that potentially orbits in the outer reaches of the solar system ...
Planetary Sciences
Feb 19, 2024
7
97
When the interstellar object (ISO) 'Oumuamua appeared in our solar system in 2017, it generated a ton of interest. The urge to learn more about it was fierce, but unfortunately, there was no way to really do so. It came and ...
Astronomy
Feb 13, 2024
0
32
Using data from the retired Stratospheric Observatory for Infrared Astronomy (SOFIA)—a joint project of NASA and the German Space Agency at DLR—Southwest Research Institute scientists have discovered, for the first time, ...
Astrobiology
Feb 12, 2024
1
5485
An experimental antenna has received both radio frequency and near-infrared laser signals from NASA's Psyche spacecraft as it travels through deep space. This shows it's possible for the giant dish antennas of NASA's Deep ...
Space Exploration
Feb 8, 2024
0
15
On 4 February, asteroid 2011 MD will make its closest approach to the Earth. Though it will not be visible with the naked eye, the asteroid will pass 15,000,000 km away from Earth—much closer than those in the asteroid ...
Astronomy
Feb 2, 2024
0
62
An asteroid as big as a skyscraper will pass within 1.7 million miles of Earth on Friday.
Space Exploration
Feb 1, 2024
0
290
