![]() | |||
| |||
|
|||
Recent Articles
|
Topic: EinsteinWritten by Kailash Sahu
This observation represents the first time Hubble has witnessed this type of effect created by a star. The data provide a solid estimate of the white dwarf’s mass and yield insights into theories of the structure and composition of the burned-out star. ![]() Looks can be deceiving. In this Hubble Space Telescope image, the white dwarf star Stein 2051B and the smaller star below it appear to be close neighbors. The stars, however, reside far away from each other. Stein 2051B is 17 light-years from Earth; the other star is about 5,000 light-years away. Stein 2051B is named for its discoverer, Dutch Roman Catholic priest and astronomer Johan Stein. (NASA, ESA, and K. Sahu (STScI)) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Journey to Mars builds ground work for missions beyond our Solar SystemNASA Headquarters
Closer to home, we’re working on techniques to help us cross greater distances. Astronauts feast on romaine lettuce grown aboard the International Space Station, perhaps a preview of future banquets en route to Mars, or to deep space. ![]() A selfie taken by Curiosity the Mars rover in the Murray Buttes area. NASA’s Journey to Mars, a plan aimed at building on robotic missions to send humans to the red planet, could be helping lay the groundwork. (NASA/JPL-Caltech/MSSS) «Read the rest of this article» Sections: Technology | No Comments
Austin Peay State University student Mary Sencabaugh creates mural honoring 2017 eclipse
A once-in-a-lifetime event, the eclipse figures to draw hundreds of amateur and professional stargazers to town for the brief opportunity to witness history. «Read the rest of this article» Sections: Education | No Comments
NASA’s Hubble Space Telescope discovers universe expanding faster than expectedWritten by Donna Weaver / Ray Villard
“This surprising finding may be an important clue to understanding those mysterious parts of the universe that make up 95 percent of everything and don’t emit light, such as dark energy, dark matter and dark radiation,” said study leader and Nobel Laureate Adam Riess of the Space Telescope Science Institute and Johns Hopkins University, both in Baltimore, Maryland. ![]() This Hubble Space Telescope image shows one of the galaxies in the survey to refine the measurement for how fast the universe expands with time, called the Hubble constant. «Read the rest of this article» Sections: Technology | No Comments
NASA to conduct long term space flight experiment on TwinsWritten by Dr. Tony Phillips
Are the identical twins still … identical? NASA is about to find out. «Read the rest of this article» Sections: Technology | No Comments
Astronomers look to make bigger Telescopes like NASA’s Hubble and Spitzer Space TelescopesWritten by Tony Phillips
Since then astronomers have been guided by a simple imperative: Make Bigger Telescopes. As the 21st century unfolds, the power of optics has grown a million-fold. «Read the rest of this article» Sections: Technology | No Comments
NASA study reveals results of Black Hole Observations
“Our work traces the complex motions, particle interactions and turbulent magnetic fields in billion-degree gas on the threshold of a black hole, one of the most extreme physical environments in the universe,” said lead researcher Jeremy Schnittman, an astrophysicist at NASA’s Goddard Space Flight Center in Greenbelt, MD. «Read the rest of this article» Sections: Technology | No Comments
NASA’s Kepler space telescope discovers White Dwarf bending light of nearby StarWritten by Whitney Clavin
The dead star, called a white dwarf, is the burnt-out core of what used to be a star like our sun. It is locked in an orbiting dance with its partner, a small “red dwarf” star. While the tiny white dwarf is physically smaller than the red dwarf, it is more massive. ![]() This artist’s concept depicts a dense, dead star called a white dwarf crossing in front of a small, red star. The white dwarf’s gravity is so great it bends and magnifies light from the red star. (Image credit: NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) helps scientists measure the spin rate of a Black HoleWritten by Whitney Clavin
The supermassive black hole lies at the dust- and gas-filled heart of a galaxy called NGC 1365, and it is spinning almost as fast as Einstein’s theory of gravity will allow. The findings, which appear in a new study in the journal Nature, resolve a long-standing debate about similar measurements in other black holes and will lead to a better understanding of how black holes and galaxies evolve. ![]() This artist’s concept illustrates a supermassive black hole with millions to billions times the mass of our sun. Supermassive black holes are enormously dense objects buried at the hearts of galaxies. (Image credit: NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA uses Supercomputer Simulations to Uncover Secrets of Merging Black HolesWritten by Francis Reddy
While astronomers have found indirect evidence of these disturbances, the waves have so far eluded direct detection. Ground-based observatories designed to find them are on the verge of achieving greater sensitivities, and many scientists think that this discovery is just a few years away. «Read the rest of this article» Sections: Technology | No Comments
|
Now playing at the Movies
Archives |
|
© 2006-2021 Clarksville, TN Online is owned and operated by residents of Clarksville Tennessee.
|