by Gareth Willmer Measuring the vast quantities of cosmic dust in interstellar space may be a key to unlocking various mysteries of the cosmos, including how the grains form and whether new types of galaxy are obscured by the particle clouds. Cosmic dust grains, which are born in stars, are the building blocks for other stars … Read more
by Ethan Bilby New efforts to figure out just how fast the universe has expanded since the Big Bang, a speed known as the Hubble constant, could upend current theories of physics, according to some scientists. Professor Grzegorz Pietrzyński at the Nicolaus Copernicus Astronomical Centre of the Polish Academy of Sciences in Warsaw is one … Read more
Detailed simulations of planetary formation are revealing how tiny grains of dust turn into giant planets and could shed light on where to find new Earth-like worlds. Scientists theorise that planets form from rotating discs of gas that surround newly formed stars, known as proto-planetary discs. Pebble-sized objects in these discs then clump together to … Read more
The most mysterious phenomenon in cosmology – dark energy – may not exist at all, according to Professor Subir Sarkar, head of the particle theory group at the University of Oxford in the UK. In the late 1990s, astronomers found evidence from supernovae that the universe has been expanding faster and faster as it gets … Read more
Mysterious radiation emitted from distant corners of the galaxy could finally be explained with efforts to recreate a unique state of matter that blinked into existence in the first moments after the Big Bang. For 50 years, astronomers have puzzled over strange radio waves and gamma rays thrown out from the spinning remnants of dead … Read more
There are likely to be many more ingredients for life on Saturn’s moon Enceladus than those identified so far, says Dr Frank Postberg from the University of Heidelberg, Germany, the lead author of a paper published on 27 June which revealed the presence of complex carbon-based molecules in the moon’s core. He says a fresh mission could … Read more