gravity

  • Explainer

    Explainer: What is gravity?

    From Newton to Einstein, how has our understanding of gravity changed over the centuries?

    We barely think about it, but gravity defines how we interact with our world. We grow up within its constraints, and ...

    Core Sciences September 3, 2021
  • Amazing gravito-electromagnetism!

    How can mathematics analogies shed light on reality?

    In some ways, mathematics is like literature. It has its own definitions and grammatical rules – although unfortunat...

    Core Sciences August 30, 2021
  • Time travel: five ways that we could do it

    Travel to the past is probably impossible. But are there ways to time-travel into the future?

    In 2009 the British physicist Stephen Hawking held a party for time travellers – the twist was he sent out the invite...

    News August 3, 2021
  • Conversation

    Approaching zero

    Super-chilled mirrors edge towards the borders of gravity and quantum physics.

    By David Ernest McClelland, Robert Ward and Terry McRaeThe LIGO gravitational wave observatory in the United Stat...

    Core Sciences June 19, 2021
  • Gold-standard gravitational measurements

    Small-scale experiment could pave the way to observe quantum gravity.

    Physicists have recorded the smallest gravitational field ever measured, showing that Newton’s law of gravity holds e...

    Core Sciences March 11, 2021
  • Catching frame dragging in action

    20-year study verifies Einstein’s prediction of general relativity.

    Scientists studying tiny changes in a pulsar’s signal have proven that massive rotating objects drag surrounding spac...

    Astrophysics February 2, 2020
  • Insects experience the effects of gravity

    And they have more control than humans.

    Gravity is one of the most universal environmental effects on living systems. It tethers us to the earth and creates ...

    Animals January 14, 2020
  • Young stars push back to keep the universe ‘vibrant’

    Australian researchers identify a cosmic counterforce to gravity. Andrew Masterson reports.

    Deep in the Large Magellanic Cloud lies the Tarantula Nebula. Deep within that lies R136, a cluster of young and dens...

    Space November 21, 2018
  • Mt Etna risk of ‘catastrophic collapse'

    Gravity, not magma, may destroy Europe’s best known volcano.

    Mt Etna, one of the world’s most active and iconic volcanoes, is at high risk of suddenly collapsing into the sea, po...

    Earth Sciences October 10, 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
  • Water minus gravity

    An astronaut looks through a floating bubble of water aboard the International Space Station.

    Astronaut Karen Nyberg watches a water bubble float freely between her and the camera, showing her image refracted in...

    Space February 13, 2018
  • Neutron star upper limit found

    German astrophysicists use LIGO data to reveal the maximum size a neutron star can grow. Andrew M...

    Data obtained from the breakthrough observation last year of two neutron stars colliding continues to drive new resea...

    Space January 21, 2018
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