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Traffic Jam In Space: How Phones, WiFi Are Blocking Signals From Black Holes
The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the satellites we use for navigation, communication and Earth observation every day.
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Most Distant Mini-Halo Discovered in Galaxy Cluster 10 Billion Light-Years Away
Astronomers have uncovered the most distant mini-halo ever detected, located around the galaxy cluster SpARCS1049, a staggering 10 billion light-years from Earth. Using the LOFAR radio telescope network, which spans eight European countries, researchers detected a faint, diffuse glow—evidence of a giant cloud of high-energy particles and magnetic...
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Dead NASA Satellite Relay 2 May Have Caused Mysterious 2024 Radio Burst
In June 2024, a mysterious 30-nanosecond radio burst baffled scientists — until they traced it back to a surprising source: Relay 2, a NASA satellite offline since 1967. Researchers believe the signal could have been triggered either by a micrometeorite impact or an electrostatic discharge. The discovery, detailed in a new preprint study, highlig...
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Mysterious "Dead" Satellite Sends Powerful Signal to Earth After Decades
The radio pulse was blasted from a defunct satellite, Relay 2, which was an experimental communications satellite launched in 1964.
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Radio Signal from Early Universe May Reveal the Masses of the First Stars
A newly modelled 21-centimetre radio signal from hydrogen atoms just 100 million years after the Big Bang may reveal the mass of the universe’s first stars. Using REACH and the upcoming SKA telescopes, researchers aim to uncover how early starlight shaped cosmic evolution during the Cosmic Dawn, when the universe transitioned from darkness to lig...
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Massive X-Class Solar Flare Erupts, Causing Widespread Pacific Radio Blackouts
A powerful X1.9-class solar flare from sunspot 4114 erupted on June 19, disrupting shortwave radio signals across the Pacific, including Hawaii. While it caused significant atmospheric ionisation, no coronal mass ejection (CME) followed. The event highlights rising solar activity and hints at more eruptions ahead, potentially impacting communicatio...
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Scientists Baffled By Mysterious Radio Waves Coming From Under Antarctica Ice
The researchers analysed signals travelling to the surface from below the ice, using a variety of instruments.
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NASA Launching Rockets To Probe 'Mysterious' Clouds In Ionosphere
Scientists are hoping to understand the Sporadic-E layers that form in the lower portions of ionosphere, causing radio signals to reflect to Earth.
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Astronomers Detect Mysterious Deep Space Object Emitting Strange Signals
According to a new study published in the journal Nature, the object releases intense signals for two minutes every 44 minutes.
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Einstein Probe Detects Mysterious X-ray Flare with Record-Long Emission
An international team of astronomers has detected a peculiar fast-evolving X-ray transient, EP241021a, using China’s Einstein Probe. Unveiled in a May 12 arXiv paper, this transient stood out due to its long-lasting emissions lasting over 79 days—unprecedented among FEXTs. EP241021a also produced optical and radio emissions, suggesting a multi-...
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Massive X1.1-class Solar Flare Causes Radio Blackouts Across America
A strong X1.1-class solar flare erupted from sunspot AR4046 on March 28, 2025. The flare caused major radio blackouts in North and South America, affecting high-frequency communications. A coronal mass ejection (CME) followed the flare but is not expected to hit Earth. More solar activity is anticipated from sunspot AR4046 and AR4048, with a 15% ch...
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X-Class Solar Flare From Emerging Sunspot Causes Radio Blackouts
An unexpected X1.1-class solar flare erupted from sunspot AR4046, triggering shortwave radio blackouts over North and South America. The flare originated from the sun’s eastern limb and was accompanied by a coronal mass ejection that is not expected to impact Earth. Space weather experts have warned that the sunspot will face Earth in the coming ...
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Strange Fast Radio Bursts Emerge from an Ancient Dead Galaxy, Baffling Scientists
Scientists have detected mysterious fast radio bursts (FRBs) from the outskirts of an 11 billion-year-old dead galaxy. This discovery challenges the belief that FRBs primarily originate from young, star-forming galaxies. Researchers suspect the bursts may result from colliding stars or a collapsing white dwarf. The Canadian Hydrogen Intensity Mappi...
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Researchers Study Dark Matter Conversion Signals in Earth's Ionosphere
A study explored the potential of Earth's ionosphere as a medium to detect dark matter particles, specifically axions and dark photons. Researchers propose that these particles could convert into low-frequency radio waves within the ionosphere's plasma, creating detectable signals. By utilizing small, cost-effective dipole antennas, scientists aim ...
-
X-Class Solar Flare From Sunspot 3912 Causes Radio Blackouts in Southern Africa
A powerful X-class solar flare erupted from sunspot region 3912 on December 8, disrupting high-frequency radio communications in southern Africa. The flare, accompanied by a coronal mass ejection (CME), ionised Earth’s upper atmosphere, absorbing radio signals and causing blackouts in areas exposed to peak solar activity. Experts predict the CME ...
-
Traffic Jam In Space: How Phones, WiFi Are Blocking Signals From Black Holes
The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the satellites we use for navigation, communication and Earth observation every day.
-
Most Distant Mini-Halo Discovered in Galaxy Cluster 10 Billion Light-Years Away
Astronomers have uncovered the most distant mini-halo ever detected, located around the galaxy cluster SpARCS1049, a staggering 10 billion light-years from Earth. Using the LOFAR radio telescope network, which spans eight European countries, researchers detected a faint, diffuse glow—evidence of a giant cloud of high-energy particles and magnetic...
-
Dead NASA Satellite Relay 2 May Have Caused Mysterious 2024 Radio Burst
In June 2024, a mysterious 30-nanosecond radio burst baffled scientists — until they traced it back to a surprising source: Relay 2, a NASA satellite offline since 1967. Researchers believe the signal could have been triggered either by a micrometeorite impact or an electrostatic discharge. The discovery, detailed in a new preprint study, highlig...
-
Mysterious "Dead" Satellite Sends Powerful Signal to Earth After Decades
The radio pulse was blasted from a defunct satellite, Relay 2, which was an experimental communications satellite launched in 1964.
-
Radio Signal from Early Universe May Reveal the Masses of the First Stars
A newly modelled 21-centimetre radio signal from hydrogen atoms just 100 million years after the Big Bang may reveal the mass of the universe’s first stars. Using REACH and the upcoming SKA telescopes, researchers aim to uncover how early starlight shaped cosmic evolution during the Cosmic Dawn, when the universe transitioned from darkness to lig...
-
Massive X-Class Solar Flare Erupts, Causing Widespread Pacific Radio Blackouts
A powerful X1.9-class solar flare from sunspot 4114 erupted on June 19, disrupting shortwave radio signals across the Pacific, including Hawaii. While it caused significant atmospheric ionisation, no coronal mass ejection (CME) followed. The event highlights rising solar activity and hints at more eruptions ahead, potentially impacting communicatio...
-
Scientists Baffled By Mysterious Radio Waves Coming From Under Antarctica Ice
The researchers analysed signals travelling to the surface from below the ice, using a variety of instruments.
-
NASA Launching Rockets To Probe 'Mysterious' Clouds In Ionosphere
Scientists are hoping to understand the Sporadic-E layers that form in the lower portions of ionosphere, causing radio signals to reflect to Earth.
-
Astronomers Detect Mysterious Deep Space Object Emitting Strange Signals
According to a new study published in the journal Nature, the object releases intense signals for two minutes every 44 minutes.
-
Einstein Probe Detects Mysterious X-ray Flare with Record-Long Emission
An international team of astronomers has detected a peculiar fast-evolving X-ray transient, EP241021a, using China’s Einstein Probe. Unveiled in a May 12 arXiv paper, this transient stood out due to its long-lasting emissions lasting over 79 days—unprecedented among FEXTs. EP241021a also produced optical and radio emissions, suggesting a multi-...
-
Massive X1.1-class Solar Flare Causes Radio Blackouts Across America
A strong X1.1-class solar flare erupted from sunspot AR4046 on March 28, 2025. The flare caused major radio blackouts in North and South America, affecting high-frequency communications. A coronal mass ejection (CME) followed the flare but is not expected to hit Earth. More solar activity is anticipated from sunspot AR4046 and AR4048, with a 15% ch...
-
X-Class Solar Flare From Emerging Sunspot Causes Radio Blackouts
An unexpected X1.1-class solar flare erupted from sunspot AR4046, triggering shortwave radio blackouts over North and South America. The flare originated from the sun’s eastern limb and was accompanied by a coronal mass ejection that is not expected to impact Earth. Space weather experts have warned that the sunspot will face Earth in the coming ...
-
Strange Fast Radio Bursts Emerge from an Ancient Dead Galaxy, Baffling Scientists
Scientists have detected mysterious fast radio bursts (FRBs) from the outskirts of an 11 billion-year-old dead galaxy. This discovery challenges the belief that FRBs primarily originate from young, star-forming galaxies. Researchers suspect the bursts may result from colliding stars or a collapsing white dwarf. The Canadian Hydrogen Intensity Mappi...
-
Researchers Study Dark Matter Conversion Signals in Earth's Ionosphere
A study explored the potential of Earth's ionosphere as a medium to detect dark matter particles, specifically axions and dark photons. Researchers propose that these particles could convert into low-frequency radio waves within the ionosphere's plasma, creating detectable signals. By utilizing small, cost-effective dipole antennas, scientists aim ...
-
X-Class Solar Flare From Sunspot 3912 Causes Radio Blackouts in Southern Africa
A powerful X-class solar flare erupted from sunspot region 3912 on December 8, disrupting high-frequency radio communications in southern Africa. The flare, accompanied by a coronal mass ejection (CME), ionised Earth’s upper atmosphere, absorbing radio signals and causing blackouts in areas exposed to peak solar activity. Experts predict the CME ...
