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    1. Home
    2. Lewis Dartnell
    Astrobiologist Lewis Dartnell University of Westminster

    Lewis Dartnell

    Astrobiologist

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    Dr. Lewis Dartnell is an astrobiologist and science author based at the University of Westminster.

    Recent articles by Lewis Dartnell

    What would happen if Earth's magnetic field flipped? Credit: Elen11 / iStock / Getty Images Plus
    Science

    Scientists discover how a reversal of Earth’s magnetic field could affect our climate

    A star like our Sun swelling into a red giant and engulfing its orbiting planets. Credit: Stocktrek Images/Tomasz Dabrowski / Getty Images
    Science

    Could reducing the Sun’s mass stop it destroying Earth in the future?

    A group of SpaceX Starlink satellites in the night sky over Uruguay. Photo by Mariana SUAREZ / AFP via Getty Images
    Science

    How big a problem are Starlink satellites for astronomers?

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    Ancient tide marks show the Moon used to orbit much closer to Earth. Credit: Abstract Aerial Art / Getty Images
    Science

    Ancient tide marks show the Moon once orbited much closer to Earth

    What causes the tides? Credit: Yinwei Liu / Getty Images
    Science

    What causes the tides?

    An unknown object slams into Jupiter, causing the most energetic flash seen this century, comparable to the Tunguska event. Credit: Ko Arimatsu
    Science

    Astronomers observe Tunguska-like impact events on Jupiter

    Can astronauts survive radiation on Mars? Credit: cokada / Getty Images
    Missions

    How astronauts can hide from radiation on Mars

    An artist's impression of the Trojan asteroids, which share the same orbital path around the Sun as gas giant Jupiter.
    Science

    Examining Jupiter’s Trojan asteroids

    Scientists are teaching drones to hunt for meteorites on Earth. Credit: Curtin University
    Science

    Scientists are teaching drones to hunt for meteorites on Earth

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    Space junk is the name given to spent satellites and other debris in orbit around Earth. Credit: janiecbros / Getty Images
    Missions

    What is space junk and why is it a big problem?

    Gases - or biosignatures - indicating life may be detectable on exoplanets orbiting M-class red dwarfsCredit: Darryl Fonseka/iStock/Getty Images
    Science

    How biosignatures could indicate life on distant planets

    Exoplanet HAT-P-7b. Credit: NASA, ESA and G. Bacon (STScI)
    Science

    Meet the scorching exoplanet that’s dark as charcoal with a sapphire sky

    Globular cluster Messier 54, captured by the VLT Survey Telescope at ESO’s Paranal Observatory in northern Chile. Credit: ESO
    Science

    How dark is space?

    An artist's conception of a hot Jupiter. These are exoplanets similar to Jupiter in our own Solar System, but orbiting much closer to their host star. Credit: NASA/Ames/JPL-Caltech
    Science

    What if a hot Jupiter existed in our Solar System?

    Artist's illustration showing what it would look to see a transit of Earth from Mars. Credit: NASA/JPL
    Science

    Is it possible to see Earth transit the Sun from Mars?

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