dark matter

  • Could ‘negative mass’ unify dark matter, dark energy?

    Controversial model may challenge fundamentals of cosmology. Phil Dooley reports.

    The universe may be suffused with an invisible fluid that exerts negative gravity: repelling rather than attracting.T...

    Space December 12, 2018
  • New observations challenge universe model

    First stars may have been in massive dark matter halos. Lauren Fuge reports.

    Observations of the very first stars to form might change accepted models of the dawn of the universe.A team of astro...

    Space December 3, 2018
  • Researchers brace for dark matter ‘hurricane’

    The effects of a long-distant galactic collision may soon aid in the search for a mysterious part...

    The solar system – and Earth's various dark matter detectors – will experience the additional dark matter as moving a...

    Space November 12, 2018
  • Is the search for dark energy a dead end?

    After decades of research, dark matter and dark energy remain elusive. Is it time to admit that c...

    In 2006, I ventured to the Carnegie Institution in Washington DC. There, I had a long conversation with the astronome...

    Space September 18, 2018
  • Einstein’s general relativity confirmed

    Measurements of warping spacetime bolster case.

    In 1919, British astronomer Sir Arthur Eddington traveled to the West African island of Príncipe to take measurements...

    Physics June 21, 2018
  • Dark matter may carry electrical charge

    Results from Western Australia may prompt a radical rethink of the properties of the elusive subs...

    Scientists studying the “cosmic dawn” — a time when the first stars ignited in the early universe — have found eviden...

    Space May 31, 2018
  • Back to square one on dark matter find

    Better imaging reveals earlier observation to be a product of less-than-perfect optics. Andrew Ma...

    It was an exciting discovery while it lasted, but fresh observations show that evidence for a valuable insight into t...

    Space April 8, 2018
  • Ghost galaxy

    This fuzzy galaxy is light on dark matter.

    {%recommended 6954%}The galaxy NGC 1052-DF2 resides about 65 million light-years away in the NGC 1052 Group, which is...

    Space April 3, 2018
  • Found: a galaxy devoid of dark matter

    Containing millions of stars, the find has astrophysicists searching for an explanation.

    In a study published in the journal Nature, scientists have found a galaxy that appears to contain no dark matter — t...

    Space March 28, 2018
  • Do massive dark matter "nuggets" lurk in our galaxy?

    On the numbers, there’s nothing to stop dark matter condensing into solids 100 million times bigg...

    If dark matter particles can cool down sufficiently, they could coalesce into dark planets many times larger than the...

    Space February 8, 2018
  • Ancient stars clue to dark matter speed

    Learning about dark matter by studying the oldest stars.

    Physicists wanting to learn about dark matter may need to look no further than the motions of the most ancient stars ...

    Physics February 4, 2018
  • Galaxy rotations raise doubts on dark matter

    Satellite galaxies orbit in a single plane, contrary to standard model predictions. Richard A Lov...

    An odd distribution in the orbits of small “satellite” galaxies circling a larger galaxy called Centaurus A is making...

    Space February 1, 2018
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