Cosmology is in disaster. The pillars of science’s most profitable mannequin of how the universe shaped – and the place it’s heading – are beginning to crack. One of these pillars is dark energy, a mysterious power inflicting the universe to broaden quicker and quicker, defying what Einstein and others as soon as anticipated. What is the true nature of dark energy, and the way will we lastly pin it down?
Physicist Tessa Baker at the University of Portsmouth, UK, is at the forefront of this search, working with some of cosmology’s strongest instruments, together with the Laser Interferometer Gravitational-Wave Observatory (LIGO). By finding out ripples in space-time despatched out by the most excessive occasions in the cosmos, akin to black gap mergers, experimentalists like Baker are starting to check radical concepts: that dark energy may stem from hidden dimensions, elusive fields detectable solely in deep area, or, Baker’s private favorite, from the thermodynamic properties of space-time itself.
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