![]() ![]() Sasselov, Professor of Astronomy at Harvard University and the Harvard-Smithsonian Center for Astrophysics, and the Director of the Harvard Origins of Life Initiative. ![]() life on Earth is not going to cease,” said Dimitar D. "If you imagine the Earth as it is today becoming a nomad planet. And I think that's an exciting place to be.”Īs for whether a nomad planet could actually sustain life, the proof may be here on Earth. How often does it happen, and how far can a nomad planet travel? How many trips around our galaxy does it make? I think these are brand new, basic questions. ![]() Strigari, lead author of the study and research associate at KIPAC and the SLAC, "I'm really curious about the exchange of planets between solar systems. So life can propagate between galaxies too, in principle." “One thing that I think modern astronomy might add to that is clear evidence that many galaxies collide and spray material out into intergalactic space. Blandford, A co-author of the recent study and director of the Kavli Institute for Particle Astrophysics and Cosmology (KIPAC) at Stanford University and the SLAC National Accelerator Laboratory. "In the 20th century, many eminent scientists have entertained the speculation that life propagated either in a directed, random or malicious way throughout the galaxy,” said Roger D. While just an idea, it’s one that becomes more intriguing when considering not only the number of nomad planets, but the behavior of galaxies In particular, if life can exist without the warmth of a nearby sun, it raises the possibility that, along with sustaining life, nomad planets could be transporting it as well. If this proposal is correct, it could be that nomad planets play a dynamic role in the universe. And because the Milky Way is estimated to have 200 to 400 billion stars, that could put the number of nomad planets in the quadrillions. Aptly titled “Nomads of the Galaxy,” the authors proposed an upper limit to the number of nomad planets that might exist in the Milky Way Galaxy: 100,000 for every star. Newswise - Recently, a study was published in the Monthly Notices of the Royal Astronomical Society proposing planets simply adrift in space may be something of a common phenomenon. ![]()
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