Scientist figures out how to move our sun to avoid space collisions

An astrophysicist proposes new designs for stellar engines that can move a solar system.

Credit: CapnHack, via energyphysics.wikispaces.com.
  • An astrophysicist proposes two new designs for stellar engines.
  • The engines would be able to move our sun and whole solar systems.
  • Moving the sun would be necessary to avoid collisions with supernovas and other space catastrophes.
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Scientists race to use zero gravity to kill the worst cancers

A 2020 space mission wants to use zero gravity to disable some of the hardest cancers to fight.

Left: U.S. Air Force photo/Heidi Hunt). Right: Source Dr. Raowf Guirguis. National Cancer Institute
  • An Australian research mission, launched in 2020 by Elon Musk's SpaceX, will study effects of zero gravity on four cancers.
  • Other missions with similar objectives are set to launch in 2022 aboard the new China Space Station.
  • In earlier experiments, scientists found that microgravity can kill cancer cells.
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Scientists want to use mountains like batteries to store energy

Researchers propose a gravity-based system for long-term energy storage.

Credit: IIASA
  • A new paper outlines using the the Mountain Gravity Energy Storage (or MGES) for long-term energy storage.
  • This approach can be particularly useful in remote, rural and island areas.
  • Gravity and hydropower can make this method a successful storage solution.
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Scientists find a new way to measure gravity

Researchers develop a novel method to measure gravity that can get much more information.

Credit: Sarah Davis / Victoria Xu
  • Scientists use lasers that suspend atoms in air to measure gravity.
  • This method can be more precise and allow for gathering of much more information.
  • Portal devices using this technique can help find mineral deposits and improve mapping.
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Physicist advances a radical theory of gravity

Erik Verlinde has been compared to Einstein for completely rethinking the nature of gravity.

Photo by Willeke Duijvekam
  • The Dutch physicist Erik Verlinde's hypothesis describes gravity as an "emergent" force not fundamental.
  • The scientist thinks his ideas describe the universe better than existing models, without resorting to "dark matter".
  • While some question his previous papers, Verlinde is reworking his ideas as a full-fledged theory.
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