On November 10, 2010, NASA's Astronomy Picture of the Day (APOD) featured a groundbreaking discovery: huge gamma-ray bubbles found around the Milky Way. This image, captured by the Fermi Gamma-Ray Space Telescope, revealed two massive, lobelike structures emitting gamma rays from the galactic center. These bubbles, spanning about 50,000 light-years from top to bottom, were previously unseen and suggested a powerful, unknown energy source at the heart of our galaxy.
The cause of these gamma-ray bubbles remains a subject of scientific investigation. Some theories propose that they could be the result of energy released by a supermassive black hole at the center of the Milky Way, possibly through past outbursts or jets. Alternatively, they might be linked to the annihilation of dark matter particles, though this remains speculative. The discovery has opened new avenues for research into the dynamic processes occurring in the central regions of our galaxy.
In addition to this cosmic revelation, NASA's Stennis Space Center conducted a significant test on november 10, 2010. Engineers performed a 10-second hotfire test of an Aerojet AJ26 rocket engine, marking a milestone in the development of commercial spaceflight capabilities. This test was part of NASA's collaboration with Orbital Sciences Corporation to develop engines for cargo flights to the international Space Station, highlighting the agency's commitment to advancing space exploration through partnerships with commercial entities.
These events underscore NASA's multifaceted role in expanding our understanding of the universe, from unveiling the mysteries of our galaxy's center to fostering innovation in space technology.
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