Gravitational Forces
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Scientists Say the Milky Way Might Sit Inside a Massive Dark Matter Sheet
Astronomers found the Milky Way lies within a massive flat sheet of dark matter about 32 million light-years across. Simulations show this structure and nearby cosmic voids balance gravitational forces, explaining why most nearby galaxies move away instead of falling toward the Local Group.
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NASA's Astronomers Reveal Red Giant Stars May Destroy Their Own Planets
This extreme expansion poses a serious threat to nearby planets. For example, when the Sun becomes a red giant in about 5 billion years, it will likely swallow Mercury and Venus.
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Astronomers Capture First Image of Two Supermassive Black Holes Orbiting Each Other
Astronomers have captured the first image of two supermassive black holes orbiting in quasar OJ 287. The smaller black hole’s jet spirals due to gravitational forces from the larger one. This discovery validates dual-core theories and opens doors for research on gravitational waves and galaxy evolution.
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Asteroid Belt Is Slowly Fading, Study Finds
A recent study shows the asteroid belt is slowly losing material due to gravitational forces and collisions, with implications for Earth's past and future impact risks.
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Earth Is Spinning Faster, Says Study. This Could Force A Global Time Reset
In a rare and unprecedented move, scientists and world timekeepers are considering reducing one second from Coordinated Universal Time (UTC) as Earth's rotation speeds up.
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Polaris Wasn’t Always the North Star: How Earth’s Wobble Shifts the Celestial Pole
Earth’s 26,000-year axial precession gradually shifts the celestial pole, replacing Polaris with new North Stars over millennia. Stars like Thuban, Kochab, Errai, and Vega have taken turns guiding humanity, and more will follow. According to NASA, gravitational forces cause this cosmic wobble, reminding us that even the seemingly constant night s...
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Astronomers Spot Galaxy NGC 3640 With a Past of Consuming Smaller Galaxies
Recent observations of NGC 3640 reveal a history of merging with smaller galaxies. Located 88 million light-years away, the elliptical galaxy is suspected to be on a collision course with NGC 3641. The Very Large Telescope captured structural distortions, hinting at previous mergers. Researchers have identified ancient stars acting as fossil marker...
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NASA's Juno Detects Io's Most Powerful Volcanic Eruption Yet
NASA’s Juno spacecraft has recorded the most powerful volcanic eruption on Io, Jupiter’s most volcanic moon. The eruption site, detected on 27 December 2024, is fueled by a massive magma chamber spanning 105,000 square kilometers. The heat energy released is estimated at 80 trillion watts, exceeding Earth’s total power output. The volcanic ac...
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NASA’s Hubble Reveals Impact of Milky Way’s Gravitational Force on Large Magellanic Cloud
NASA’s Hubble Space Telescope recently observed the Large Magellanic Cloud (LMC) interacting with the Milky Way’s halo. Researchers found that the LMC’s gas halo has been significantly reduced, likely due to ram-pressure stripping. Despite this, the LMC retains enough gas to continue star formation. Future studies will focus on exploring othe...
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India-UK Team Proposes Experiment to Test Quantum Behaviour of Gravity with Diamond Crystals
An India-UK physics team led by Professor Sougato Bose from UCL has proposed a ground-breaking experiment to determine if gravity follows quantum mechanics, like other fundamental forces. Using a table-top setup, they aim to measure gravitational interactions between two nanodiamonds. The study, requiring cutting-edge technology, could take 10-15 y...
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Scientists Say the Milky Way Might Sit Inside a Massive Dark Matter Sheet
Astronomers found the Milky Way lies within a massive flat sheet of dark matter about 32 million light-years across. Simulations show this structure and nearby cosmic voids balance gravitational forces, explaining why most nearby galaxies move away instead of falling toward the Local Group.
-
NASA's Astronomers Reveal Red Giant Stars May Destroy Their Own Planets
This extreme expansion poses a serious threat to nearby planets. For example, when the Sun becomes a red giant in about 5 billion years, it will likely swallow Mercury and Venus.
-
Astronomers Capture First Image of Two Supermassive Black Holes Orbiting Each Other
Astronomers have captured the first image of two supermassive black holes orbiting in quasar OJ 287. The smaller black hole’s jet spirals due to gravitational forces from the larger one. This discovery validates dual-core theories and opens doors for research on gravitational waves and galaxy evolution.
-
Asteroid Belt Is Slowly Fading, Study Finds
A recent study shows the asteroid belt is slowly losing material due to gravitational forces and collisions, with implications for Earth's past and future impact risks.
-
Earth Is Spinning Faster, Says Study. This Could Force A Global Time Reset
In a rare and unprecedented move, scientists and world timekeepers are considering reducing one second from Coordinated Universal Time (UTC) as Earth's rotation speeds up.
-
Polaris Wasn’t Always the North Star: How Earth’s Wobble Shifts the Celestial Pole
Earth’s 26,000-year axial precession gradually shifts the celestial pole, replacing Polaris with new North Stars over millennia. Stars like Thuban, Kochab, Errai, and Vega have taken turns guiding humanity, and more will follow. According to NASA, gravitational forces cause this cosmic wobble, reminding us that even the seemingly constant night s...
-
Astronomers Spot Galaxy NGC 3640 With a Past of Consuming Smaller Galaxies
Recent observations of NGC 3640 reveal a history of merging with smaller galaxies. Located 88 million light-years away, the elliptical galaxy is suspected to be on a collision course with NGC 3641. The Very Large Telescope captured structural distortions, hinting at previous mergers. Researchers have identified ancient stars acting as fossil marker...
-
NASA's Juno Detects Io's Most Powerful Volcanic Eruption Yet
NASA’s Juno spacecraft has recorded the most powerful volcanic eruption on Io, Jupiter’s most volcanic moon. The eruption site, detected on 27 December 2024, is fueled by a massive magma chamber spanning 105,000 square kilometers. The heat energy released is estimated at 80 trillion watts, exceeding Earth’s total power output. The volcanic ac...
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NASA’s Hubble Reveals Impact of Milky Way’s Gravitational Force on Large Magellanic Cloud
NASA’s Hubble Space Telescope recently observed the Large Magellanic Cloud (LMC) interacting with the Milky Way’s halo. Researchers found that the LMC’s gas halo has been significantly reduced, likely due to ram-pressure stripping. Despite this, the LMC retains enough gas to continue star formation. Future studies will focus on exploring othe...
-
India-UK Team Proposes Experiment to Test Quantum Behaviour of Gravity with Diamond Crystals
An India-UK physics team led by Professor Sougato Bose from UCL has proposed a ground-breaking experiment to determine if gravity follows quantum mechanics, like other fundamental forces. Using a table-top setup, they aim to measure gravitational interactions between two nanodiamonds. The study, requiring cutting-edge technology, could take 10-15 y...
