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2H2KWEA Big Bang to Present. Stages in the history of the Universe after the Big Bang. At 300, 000 years, matter and radiation decouple, and the Universe becomes transparent for the first time. The first galaxies form at around 300 million years after the Big Bang, but the exact time period is uncertain. At an age of 9 billion years the Solar System formed. Finally, 13.7 billion years after the Big Bang we arrive at the present day. The Universe is still expanding and evolving.

Physics

What happens to light's energy when it redshifts? It's complicated

When it comes to cosmology, answering one question only leads to more. Just take light. Chanda Prescod-Weinstein dives into a reader's question

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Mind

What are the best ways to improve your cognitive reserve?

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RC9MHB Rome, Italy, 05/06/2018: a street artist simulates an invisible man on the pedestrian area along tevere castello near castel sant'angelo.

Technology

How invisibility cloaks could make us disappear – at least from AI

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Social media is dead – here’s what comes next

Technology

Social media is dead – here’s what comes next

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EJ532Y The 11/19 pit and twin slag heaps in Lens (France) or residues left over from the coal extraction process.

Earth

We've found that a new type of rock is forming from old slag heaps

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The NIRCam (Near-Infrared Camera) instrument on NASA?s James Webb Space Telescope?s reveals a portion of the Milky Way?s dense core in a new light. An estimated 500,000 stars shine in this image of the Sagittarius C (Sgr C) region, along with some as-yet unidentified features. A large region of ionized hydrogen, shown in cyan, contains intriguing needle-like structures that lack any uniform orientation. NASA, ESA, CSA, STScI, and S. Crowe (University of Virginia).

Space

The cosmos is vast, so how do we measure it?

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A pink robot with heart eyes

Technology

Why falling in love with an AI isn’t laughable, it’s inevitable

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Humans

70,000 years ago humans underwent a major shift – that’s why we exist

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EHNFPG Woman use an oestrogen patch for a Hormone Replacement Therapy (HRT), in order to releive the undesirable effects of menopause.

Health

Could hormone implants allow us to boost focus, endurance and libido?

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A woman lying awake in bed

Mind

What sleep scientists recommend doing to fall asleep more easily

Helping yourself get to sleep isn’t just about avoiding screens before bedtime. From cognitive shuffling to sleep-restriction therapy, columnist Helen Thomson finds out what actually works

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Technology

Forget the Terminators, our robot future may be squishy and fun

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Health

To understand sunburn, you need to know how UV provokes inflammation

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Life

The surprising silver lining to the recent boom in invertebrate pets

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Space

Why you should join a watch party for the first Vera C. Rubin images

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