Astronomy

There are all kinds of different ways to measure biodiversity. But if we are to arrest its alarming decline, biologists must agree on a method that best captures how it changes over time

There are all kinds of different ways to measure biodiversity. But if we are to arrest its alarming decline, biologists must agree on a method that best captures how it changes over time

Nighttime, ground-level view of the Apollo 10 space vehicle on Pad B, Launch Complex 39, Kennedy Space Center. This photograph of the 363-feet tall Apollo/Saturn V stack was taken during pull back of the mobile service structure. The Apollo 10 crew was astronauts Thomas P. Stafford, John W. Young, and Eugene A. Cernan.

Our galaxy series continues with elliptical galaxies. Unlike other types, these are large, smooth with very few distinguishing features. They’re filled with red and dead stars, a clue to their evolution.

For the first time, a quantum sensor has been used to record magnetic signals from the heart of a living animal, opening the door for future uses of quantum technology in medical settings

For the first time, a quantum sensor has been used to record magnetic signals from the heart of a living animal, opening the door for future uses of quantum technology in medical settings

Experiments show that effect doesn’t always follow cause in the weird world of subatomic particles, offering fresh clues about the quantum origins of space-time

Experiments show that effect doesn’t always follow cause in the weird world of subatomic particles, offering fresh clues about the quantum origins of space-time

The rare Bornean flat-headed frog was thought to be the only frog with no lungs, but we now know it has very, very tiny ones

The rare Bornean flat-headed frog was thought to be the only frog with no lungs, but we now know it has very, very tiny ones

Electrical stimulation on the back during rehabilitation exercises causes lasting improvements in people’s ability to use their hands.

Electrical stimulation on the back during rehabilitation exercises causes lasting improvements in people’s ability to use their hands.

Estimates suggest there are trillions of free-floating worlds in our galaxy alone. Most of them will be frozen planets like Pluto, but some might be warmer – and possibly even habitable

Estimates suggest there are trillions of free-floating worlds in our galaxy alone. Most of them will be frozen planets like Pluto, but some might be warmer – and possibly even habitable

We can describe different kinds of thought and how they arise, to some extent, but the relationship between neural activity and the nature of what we are thinking isn't well understood

We can describe different kinds of thought and how they arise, to some extent, but the relationship between neural activity and the nature of what we are thinking isn't well understood

Although studies are still mixed and products are often inconsistent, many scientists have hope that cannabidiol can help furry patients with arthritis, allergies and anxiety

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ESA's fireball camera in Cáceres, Spain, captured this stunning meteor during the night of 18—19 May 2024 (00:46 CEST 19 May / 22:46 UTC 18 May).

The camera is operated by ESA’s Planetary Defence Office and is part of the AllSky7 fireball network.

ESA’s planetary defenders began investigating the impact shortly after it was first reported. Their analysis of the object’s trajectory has revealed that it is likely to have been a small piece of a comet.

They estimate that it flew over Spain and Portugal travelling at roughly 45 km/s (162 000 km/h) before burning up over the Atlantic Ocean at an altitude of approximately 60 km.

Using data on the amount of energy released during the impact, they estimate that the object was roughly 1 m in size and had a mass of 500—1000 kg.

The likelihood of any meteorites from this even being discovered is very low.

The object was not detected before impact. This is likely because it approached Earth from a region of the sky that is particularly crowded with stars of the Milky Way galaxy.

Find out more about ESA’s Planetary Defence activities

New research may have revived the mystery of 8 Ursae Minoris b, a seemingly doomed exoplanet that shouldn’t exist.

The post Astronomers Reopen the Mystery of a Planet That Shouldn’t Exist appeared first on Sky & Telescope.

It’s a “big deal” to demonstrate entangled quantum networks outside a lab