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About Jonathan O'Callaghan

Jonathan O'Callaghan

Jonathan O'Callaghan

Senior Staff Writer

About the Author

With a background in Physics and Astrophysics, Jonathan has a passion for space science and exploration stories. From Apollo to SpaceX, Jonathan enjoys covering the past, present, and future of the space age, while also dabbling in broader science and technology. But he still refuses to obey the laws of thermodynamics.

Read IFLScience Editorial Policy

2,016 PUBLISHED ARTICLES

LOCATION

London

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Latest from Jonathan O'Callaghan

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The First Moon Landing Hinged On A Single Word To Save It From DisasterThe Apollo 11 Eagle lunar lander landed Neil Armstrong and Buzz Aldrin on the Moon on July 20, 1969.

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The First Moon Landing Hinged On A Single Word To Save It From DisasterThe Apollo 11 Eagle lunar lander landed Neil Armstrong and Buzz Aldrin on the Moon on July 20, 1969.
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Here's What Happens To The Human Body If It Overheatsarticle image

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Here's What Happens To The Human Body If It Overheatsarticle image
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Here's What Happens To The Human Body If It Overheats

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Humans Didn't Descend From A Pair Of Adults 200,000 Years Agoarticle image

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Humans Didn't Descend From A Pair Of Adults 200,000 Years Agoarticle image
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Humans Didn't Descend From A Pair Of Adults 200,000 Years Ago

clock-iconNovember 30, 2018
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NASA Reveals New Details About Its Plan To Return To The Moonarticle image

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NASA Reveals New Details About Its Plan To Return To The Moonarticle image
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NASA Reveals New Details About Its Plan To Return To The Moon

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Step Aside Knickers, There's An Even Bigger Cow In Town Called Dozerarticle image

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Step Aside Knickers, There's An Even Bigger Cow In Town Called Dozer

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NASA Chief Says Elon Musk Won't Be Smoking Weed Again After Launching Investigation Into SpaceXarticle image

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NASA Chief Says Elon Musk Won't Be Smoking Weed Again After Launching Investigation Into SpaceXarticle image
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NASA Chief Says Elon Musk Won't Be Smoking Weed Again After Launching Investigation Into SpaceX

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Are You Still Conscious After You Die?article image

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Are You Still Conscious After You Die?article image

Are You Still Conscious After You Die?

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Scientists Can't Explain What Caused These Mysterious Seismic Waves To Travel Around The Worldarticle image

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Scientists Can't Explain What Caused These Mysterious Seismic Waves To Travel Around The Worldarticle image
nature-iconNature

Scientists Can't Explain What Caused These Mysterious Seismic Waves To Travel Around The World

clock-iconNovember 29, 2018

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Trump's Idea For A Space Force Is Probably Not Going To Happenarticle image

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Trump's Idea For A Space Force Is Probably Not Going To Happenarticle image
space-iconSpace and Physics

Trump's Idea For A Space Force Is Probably Not Going To Happen

clock-iconNovember 29, 2018
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This Asteroid Is Not Going To Hit Earth In 2023, So Please Continue To Enjoy Your Lifearticle image

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This Asteroid Is Not Going To Hit Earth In 2023, So Please Continue To Enjoy Your Lifearticle image
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This Asteroid Is Not Going To Hit Earth In 2023, So Please Continue To Enjoy Your Life

clock-iconNovember 28, 2018
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High Chance New El Niño Will Form In The Next 3 Months, Says UNarticle image

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High Chance New El Niño Will Form In The Next 3 Months, Says UNarticle image
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High Chance New El Niño Will Form In The Next 3 Months, Says UN

clock-iconNovember 28, 2018

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The Internet Is Freaking Out Over This Giant Cow In Australia That's So Big It Can't Be Soldarticle image

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The Internet Is Freaking Out Over This Giant Cow In Australia That's So Big It Can't Be Soldarticle image
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The Internet Is Freaking Out Over This Giant Cow In Australia That's So Big It Can't Be Sold

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Donald Trump Doesn't Believe His Own Administration's Report On Climate Changearticle image

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Donald Trump Doesn't Believe His Own Administration's Report On Climate Changearticle image

Donald Trump Doesn't Believe His Own Administration's Report On Climate Change

clock-iconNovember 27, 2018
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First Ancient DNA From Finland Reveals Early Ancestors' Migration From Siberiaarticle image

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First Ancient DNA From Finland Reveals Early Ancestors' Migration From Siberiaarticle image

First Ancient DNA From Finland Reveals Early Ancestors' Migration From Siberia

clock-iconNovember 27, 2018

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Archaeologists Have Discovered The Oldest Human Burials In Ecuadorarticle image

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Archaeologists Have Discovered The Oldest Human Burials In Ecuadorarticle image

Archaeologists Have Discovered The Oldest Human Burials In Ecuador

clock-iconNovember 27, 2018