42 - The Signal That Could Be the Dark M...

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Daniel and Jorge talk about whether our galaxy is in the middle of a giant void that could have fooled us into thinking the expansion of the Universe is accelerating.See omnystudio.com/listener for privacy information. 

SpaceTime Series 27 Episode 131 *Ultra High Energy Gamma Rays Detected in the Milky Way's Core Scientists have detected ultra high energy gamma rays emanating from the centre of the Milky Way. This discovery, reported in the Astrophysical Journal Letters, offers a new perspective ... Show More

A black hole is so dense, its gravitational field prevents anything from escaping, including light. You would think that would make them the "blackest" things in the universe; how in the world do we know they are there? Dr. Andrea Derdzinski tells us about how we detect black hol ... Show More

Dark energy, the mysterious force powering the expansion of the universe, appears to be weakening over time, according to a major cosmological survey that has thrown the laws of modern physics into doubt. Ian Sample tells Madeleine Finlay how this new finding could shed light on ... Show More

Daniel and Jorge talk about whether gravitational waves cause permanent distortions of space.See omnystudio.com/listener for privacy information. 

Have you ever pondered the fact that the universe is expanding? And not only that, it's expanding at an increasing speed - meaning everything around us is getting further and further away? If that isolating thought makes you feel slightly panicked, don't worry: this programme als ... Show More

Observations using the Dark Energy Camera (DECam) confirm astronomers’ expectation that early-Universe quasars formed in regions of space densely populated with companion galaxies. DECam’s exceptionally wide field of view and special filters played a crucial role in reaching this ... Show More