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Sun Erupts with Triple Solar Flares After Weeks of Silence
After a 22-day period of solar calm, the Sun unleashed three M-class solar flares on August 3–4, 2025, all originating from active sunspot region AR 4168. These moderate flares released intense radiation, capable of briefly disrupting high-frequency radio signals and potentially sparking auroras at high latitudes. Scientists also detected likel...
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Starlink’s Unintended Signals Threaten Astronomical Research, Study Finds
Astronomers have raised concerns over Starlink’s unintended radio emissions interfering with space observation. A Curtin University study found emissions from SpaceX satellites impacting up to 30% of astronomical data. Experts urge updated regulations to protect radio astronomy, as current rules overlook these non-deliberate signals from satellit...
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Long-Range Drones Damaged Russian Electronic Warfare Equipment Plant: Ukraine
Ukrainian drones hit a radio and electronic warfare equipment plant in Russia's Stavropol region in an overnight attack on Saturday.
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Alien Landing Strips? Airports Could Guide Aliens to Earth, Study Suggests
Radar systems emit electromagnetic signals that can travel into space, detectable by powerful radio telescopes.
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Scientists Trace Universe’s Missing Ordinary Matter Using FRBs and X-rays
New astronomical breakthroughs have identified where the universe’s “missing” ordinary matter resides. Using 70 FRBs, including one from 9 billion light-years away, scientists discovered that 76% of ordinary matter exists between galaxies. A separate X-ray study observed an enormous hot gas filament connecting galaxy clusters.
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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.
-
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.
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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-...
-
Sun Erupts with Triple Solar Flares After Weeks of Silence
After a 22-day period of solar calm, the Sun unleashed three M-class solar flares on August 3–4, 2025, all originating from active sunspot region AR 4168. These moderate flares released intense radiation, capable of briefly disrupting high-frequency radio signals and potentially sparking auroras at high latitudes. Scientists also detected likel...
-
Starlink’s Unintended Signals Threaten Astronomical Research, Study Finds
Astronomers have raised concerns over Starlink’s unintended radio emissions interfering with space observation. A Curtin University study found emissions from SpaceX satellites impacting up to 30% of astronomical data. Experts urge updated regulations to protect radio astronomy, as current rules overlook these non-deliberate signals from satellit...
-
Long-Range Drones Damaged Russian Electronic Warfare Equipment Plant: Ukraine
Ukrainian drones hit a radio and electronic warfare equipment plant in Russia's Stavropol region in an overnight attack on Saturday.
-
Alien Landing Strips? Airports Could Guide Aliens to Earth, Study Suggests
Radar systems emit electromagnetic signals that can travel into space, detectable by powerful radio telescopes.
-
Scientists Trace Universe’s Missing Ordinary Matter Using FRBs and X-rays
New astronomical breakthroughs have identified where the universe’s “missing” ordinary matter resides. Using 70 FRBs, including one from 9 billion light-years away, scientists discovered that 76% of ordinary matter exists between galaxies. A separate X-ray study observed an enormous hot gas filament connecting galaxy clusters.
-
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-...
