Can questions sent to Open-Educational-Resource (OER) websites such as Ask-An-Expert serve as indicators for students’ interest in science? This issue was examined using an online questionnaire which included an equal number of questions about the topics “space” and “nutrition” randomly selected from three different sources: a 5th-grade science textbook, the “Ask-An-Expert” website, and questions collected from other students in the same age group. A sample of 113 5th-graders from two elementary schools were asked to rate their interest level in finding out the answer to these questions without knowledge of their source. Significant differences in students’ interest level were found between questions: textbook questions were ranked lowest for both subjects, and questions from the open-resource were ranked high. This finding suggests that questions sent to an open-resource could be used as an indicator of students’ interest in science. In addition, the high correlation of interests expressed by students from the two schools may point to a potential generalization of the findings. This study contributes by highlighting OER as a new and promising indicator of student interest, which may help bring “student voices” into mainstream science teaching to increase student interest in science.

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What were galaxies like in the early universe? This is what a recent study published in The Astronomical Journal hopes to address as an international team

How did black holes form and how many existed in the early universe, or less than one billion years after the Big Bang? This is what a recent study publish

What influence can black holes have on a galaxy’s formation and evolution? This is what a recent study published in Nature Astronomy hopes to address

Could slight wobbles in the orbit of Mars be caused by microscopic black holes that have existed since the Big Bang? This is what a recent study published

How did black holes form and how many existed in the early universe, or less than one billion years after the Big Bang? This is what a recent study publish

What influence can black holes have on a galaxy’s formation and evolution? This is what a recent study published in Nature Astronomy hopes to address

Could slight wobbles in the orbit of Mars be caused by microscopic black holes that have existed since the Big Bang? This is what a recent study published

How did black holes form and how many existed in the early universe, or less than one billion years after the Big Bang? This is what a recent study publish

What influence can black holes have on a galaxy’s formation and evolution? This is what a recent study published in Nature Astronomy hopes to address

Could slight wobbles in the orbit of Mars be caused by microscopic black holes that have existed since the Big Bang? This is what a recent study published

KEF has launched its latest Q Series speakers – the Q Series with MAT™ technology – that deliver top audio at a lower price.

Astronomers have identified a distant stellar tagalong to the binary system V404 Cygni.

The post Newfound Stellar Companion May Explain Black Hole System appeared first on Sky & Telescope.

Scientists say microscopic black holes could explain the elusive "dark matter" that makes up a quarter of all matter in the universe. But can it be proven?

On Explorations this week Dr. Michio Kaku speaks with Dr. Neil deGrasse Tyson, an American astrophysicist, author, and science communicator. Tyson studied at Harvard University, the University of Texas at […]

The post ON EXPLORATIONS – the science of black holes, with Dr. Neil Degrasse Tyson and Dr. Fulvia Melia. appeared first on KKFI.

Supermassive Black Holes (SMBHs) can have billions of solar masses, and observational evidence suggests that all large galaxies have one at their centres. However, the JWST has revealed a foundational cosmic mystery. The powerful space telescope, with its ability to observe ancient galaxies in the first billion years after the Big Bang, has shown us …

Continue reading "How Did Supermassive Black Holes Get So Big, So Early? They Might Have Had a Head Start"

The post How Did Supermassive Black Holes Get So Big, So Early? They Might Have Had a Head Start appeared first on Universe Today.

The theory goes that black holes accrete material, often from nearby stars. However the theory also suggests there is a limit to how big a black hole can grow due to accretion and certainly shouldn’t be as large as they are seen to be in the early Universe. Black holes it seems, are fighting back …

Continue reading "Early Black Holes Fed 40x Faster than Should Be Possible"

The post Early Black Holes Fed 40x Faster than Should Be Possible appeared first on Universe Today.

In this article, we derive the gravitational time dilation factor in a new manner, which allows us to identify the mathematical cause of Schwarzschild radius, to give a theoretical way to avoid it and to compute properties of black hole. General relativity effects are computed as simple as in special relativity. Observability of black hole...

For Newtonian mechanics The Schwarzschild radius is the radius of the event horizon of a black hole. Amazingly, we can compute it with Newtonian mechanics, which is explained below. Consider a big mass M which creates the gravitational acceleration a for a small mass m at the distance r from M, see figure 1 and...

Two NASA telescopes helped an international team of astrophysicists peer far enough back in time to gain new insight on how black holes form.

Scientists have long known that magnetic fields probably extract energy from spinning black holes — they just didn’t know how.

Not everything that crosses a supermassive black hole’s accretion disc gets spaghettified, astrophysicists say.

The Event Horizon Telescope team has captured the first image of Sagittarius A*, the black hole at the center of the Milky Way.

After mapping the movement of stars for years, astronomers believe they have found a black hole at the center of the Milky Way

The energetic streams are together 23 million light-years in length—roughly as long as 140 Milky Way galaxies lined end to end

NASA’s Chandra X-ray Observatory has unveiled mysterious "knots" in the jet of a supermassive black hole in Centaurus A, a nearby galaxy. These bright, fast-moving features exhibit a higher speed in X-rays than in radio wavelengths, hinting at unexplored physics in black hole jets. Despite financial uncertainties surrounding Chandra's operations, scientists continue to uncover new phenomena in deep space, underscoring the telescope’s enduring value to astrophysics.

Whether space and time are part of the universe or they emerge from quantum entanglement is one of the biggest questions in physics. And we are getting close to the truth

How did the supermassive black holes we’re now seeing in the early universe get so big so fast? Astrophysicist Sophie Koudmani is using sophisticated galaxy simulations to figure it out

Physicists finally know whether black holes destroy the information contained in infalling matter. The problem is that the answer hasn’t lit the way to a new understanding of space-time

Information contained within quantum objects gets scrambled when they interact. Physicists have now derived a speed limit for this process, challenging the idea that black holes are the fastest data scramblers

When I heard Stephen Hawking extol the mysteries of black holes, I knew theoretical physics was what I wanted to do. There is still so much to learn about these strange regions, says Chanda Prescod-Weinstein

Whether space and time are part of the universe or they emerge from quantum entanglement is one of the biggest questions in physics. And we are getting close to the truth

Physicists finally know whether black holes destroy the information contained in infalling matter. The problem is that the answer hasn’t lit the way to a new understanding of space-time

In the centre of a distant galaxy, a supermassive black hole has swallowed up a star 9 times the sun’s mass in the biggest and brightest such cosmic meal we’ve ever seen

The Milky Way may be home to strange black holes from the first moments of the universe, and the best candidates are the three closest black holes to Earth

The long-standing mystery of how supermassive black holes grew so huge so quickly could be solved by decaying dark matter

Spanning 23 million light years, or 220 Milky Way galaxies, a set of giant, newly discovered black hole jets known as Porphyrion may change our understanding of black holes and the structure of the universe

How did the supermassive black holes we’re now seeing in the early universe get so big so fast? Astrophysicist Sophie Koudmani is using sophisticated galaxy simulations to figure it out

General relativity teaches us that observing a black hole is all a question of perspective – and technique, says Chanda Prescod-Weinstein

The Smile “The Slip” It’s unfortunate that The Smile records have to carry the weight of questions like “wait, is there never going to be another Radiohead album?” and “hold on, so is this basically Radiohead from now on?” But what can you do? Those are big questions for anyone who’d want to listen to […]

Economists say the state of public finances should not have come as a complete surprise to the new government.

Astrophysicist Janna Levin, PhD, is asked to explain black holes to 5 different people; a child, a teen, a college student, a grad student, and an expert. Special thanks to our host Janna Levin who’s literally written the book on black holes ‘Black Hole Survival Guide’ https://www.penguinrandomhouse.com/books/622603/black-hole-survival-guide-by-janna-levin/For more science and space insights follow Jann on twitter at @JannaLevin

A new study challenges the findings of older ones that had concluded the universe had spiral galaxies sooner than expected

1. Astronomers Identify Closest Black Hole to Earth  VOA Learning English
2. Astronomers find closest black hole to Earth yet to be discovered  9News
3. New black hole discovered - and it's the closest to Earth ever found, say scientists  Mirror Online
4. View Full coverage on Google News

European astronomers have found the closest black hole to Earth yet, so near that the two stars dancing with it can be seen by the naked eye.

Astronomers using NASA's Chandra X-ray Observatory have found evidence of the youngest black hole known to exist in our cosmic neighborhood. The 30-year-old object is a remnant of SN 1979C, a supernova in the galaxy M100 approximately 50 million light years from Earth.

The post Chandra X-ray Observatory finds youngest nearby black hole appeared first on Smithsonian Insider.

According to new research by Nick Stone and Avi Loeb (Harvard-Smithsonian Center for Astrophysics), upcoming sky surveys might offer astronomers a way to catch a gorging black hole "in the act."

The post Astronomers seek monster black hole gorging on a buffet of stars appeared first on Smithsonian Insider.

Using the deepest X-ray image ever taken, astronomers found the first direct evidence that massive black holes were common in the early universe. This discovery from NASA's Chandra X-ray Observatory shows that very young black holes grew more aggressively than previously thought, in tandem with the growth of their host galaxies.

The post Chandra X-Ray Observatory finds massive black holes common in early universe appeared first on Smithsonian Insider.