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What Is Heliosphere? NASA's New Mission To Study Sun's Protective Bubble
NASA launched the Interstellar Mapping and Acceleration Probe (IMAP) spacecraft from Kennedy Space Center in Florida on Wednesday, September 24.
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Sun Shows Signs of Rising Activity Following Decades of Weakening, Study Finds
A new NASA study shows the Sun’s activity has been rising since 2008, reversing decades of decline. The unexpected trend suggests greater risks from solar storms, flares, and plasma ejections. Scientists stress improved forecasting is essential, with upcoming missions like IMAP and SWFO-L1 set to expand space weather monitoring and protection eff...
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Scientists Say Solar Flares Are Hotter Than Expected, Could Reach 108 Million Degrees
A groundbreaking study shows ions in solar flares can reach 108 million°F, about six times hotter than earlier estimates. The research explains decades-old mysteries in flare spectra and urges new “multi-temperature” models to better forecast space weather, protecting satellites, astronauts, and communications from hazardous solar storms.
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Exoplanets Explained: How Astronomers Find Worlds Orbiting Stars Beyond the Sun
Exoplanets are planets orbiting stars outside our solar system, hidden by stellar glare and detected indirectly. Astronomers identify them by tracking star wobbles or dips in brightness during planetary transits. NASA’s Kepler mission revealed thousands, with TESS now expanding the search. These discoveries confirm that planetary systems are abun...
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UY Scuti Reigns as the Universe’s Biggest Known Star, but Its Crown May Be at Risk
UY Scuti, a red hypergiant about 1,700 times the Sun’s radius, is the universe’s largest known star. Nearly 5 billion suns could fit inside its volume, but rivals like NML Cygni and Westerlund 1-26 challenge its claim to the crown. Astronomers stress that size estimates carry large uncertainties, leaving the title of biggest star still conteste...
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NASA and NOAA Set to Launch Solar Probes for Space Weather Forecasting
In Sept. 2025, NASA and NOAA will launch three spacecraft aboard a Falcon 9 to the Sun–Earth L1 point. IMAP will map the heliosphere’s edge, the Carruthers Geocorona Observatory will study Earth’s exosphere, and SWFO-L1 will deliver real-time solar storm warnings. Together, they aim to improve space-weather science and safeguard technology on...
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NASA’s PUNCH Mission Completes Final Orbit Manoeuvres, Opens Early Sun Data to the Public
NASA’s PUNCH mission has reached full operational status, enabling continuous monitoring of the Sun and solar wind from multiple vantage points around Earth. This collaborative effort complements other major solar missions and promises valuable insights into the Sun–Earth connection. Early public release of PUNCH’s science data marks an excit...
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Hubble Delivers Best View Yet of Rare Interstellar Comet 3I/ATLAS Racing Through Solar System
Hubble has captured its sharpest image of 3I/ATLAS, a rare interstellar comet speeding through the solar system at 130,000 mph. The view reveals a dust-filled coma, a faint tail, and activity similar to native comets. Astronomers aim to study its composition before it vanishes forever, offering insight into objects formed around other stars.
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Indian Scientists Unravel the Mystery Behind Rare Aurora Over Ladakh
A team of Indian astronomers has successfully explained the rare aurora seen over Ladakh, caused by intense solar activity and CME collisions. The event, captured in May 2024, was traced using global data and advanced solar models, offering new insights into space weather forecasting and solar storm impacts on Earth.
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Uranus Found Emitting Internal Heat, Reviving Hopes for Flagship NASA Mission
Astronomers have discovered that Uranus emits 12% more heat than it receives from sunlight, contradicting past data from Voyager 2. The internal warmth likely comes from leftover energy in the planet’s core, offering clues to its tilt and interior structure. This unexpected heat has intensified calls for a flagship NASA mission to Uranus. Scienti...
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Astronomers Discover 3I/ATLAS, Largest Interstellar Comet Yet Detected
Astronomers have discovered 3I/ATLAS, the third known interstellar comet to pass through our solar system. Detected by the ATLAS telescope in Chile, it’s racing inward at 150,000 mph and will swing closest to the Sun in October. Estimated to be 10–20 kilometers across, it is likely the largest interstellar object observed so far. Signs of comet...
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Two Spacecraft Recreate Artificial Solar Eclipses to Observe the Sun’s Superhot Corona
Twin satellites in ESA’s Proba-3 mission have successfully recreated artificial solar eclipses from space to examine the sun’s million-degree corona. The breakthrough will allow continuous observations of the sun’s outer atmosphere, offering rare insights that natural eclipses on Earth can’t provide. The mission marks a major step in solar ...
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'City-Killer' Asteroid May Hit Moon, Hurl Deadly Debris Toward Earth
Asteroid 2024 YR4 might collide with the Moon in 2031, with a 4.3% chance of impact, according to NASA's updated calculations.
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Solar Storms Are Causing Elon Musk's Starlink Satellites To Fall From The Sky
The study revealed that geomagnetic storms caused by the Sun's eruptions increased atmospheric drag, causing satellites to re-enter faster than expected.
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The Promise And Peril Of A Crewed Mars Mission
Mars mission would pursue scientific objectives like determining whether Mars ever hosted life and charting the evolution of its surface, as well as answering broader questions -- such as the history of the Sun through studying Martian soil.
-
What Is Heliosphere? NASA's New Mission To Study Sun's Protective Bubble
NASA launched the Interstellar Mapping and Acceleration Probe (IMAP) spacecraft from Kennedy Space Center in Florida on Wednesday, September 24.
-
Sun Shows Signs of Rising Activity Following Decades of Weakening, Study Finds
A new NASA study shows the Sun’s activity has been rising since 2008, reversing decades of decline. The unexpected trend suggests greater risks from solar storms, flares, and plasma ejections. Scientists stress improved forecasting is essential, with upcoming missions like IMAP and SWFO-L1 set to expand space weather monitoring and protection eff...
-
Scientists Say Solar Flares Are Hotter Than Expected, Could Reach 108 Million Degrees
A groundbreaking study shows ions in solar flares can reach 108 million°F, about six times hotter than earlier estimates. The research explains decades-old mysteries in flare spectra and urges new “multi-temperature” models to better forecast space weather, protecting satellites, astronauts, and communications from hazardous solar storms.
-
Exoplanets Explained: How Astronomers Find Worlds Orbiting Stars Beyond the Sun
Exoplanets are planets orbiting stars outside our solar system, hidden by stellar glare and detected indirectly. Astronomers identify them by tracking star wobbles or dips in brightness during planetary transits. NASA’s Kepler mission revealed thousands, with TESS now expanding the search. These discoveries confirm that planetary systems are abun...
-
UY Scuti Reigns as the Universe’s Biggest Known Star, but Its Crown May Be at Risk
UY Scuti, a red hypergiant about 1,700 times the Sun’s radius, is the universe’s largest known star. Nearly 5 billion suns could fit inside its volume, but rivals like NML Cygni and Westerlund 1-26 challenge its claim to the crown. Astronomers stress that size estimates carry large uncertainties, leaving the title of biggest star still conteste...
-
NASA and NOAA Set to Launch Solar Probes for Space Weather Forecasting
In Sept. 2025, NASA and NOAA will launch three spacecraft aboard a Falcon 9 to the Sun–Earth L1 point. IMAP will map the heliosphere’s edge, the Carruthers Geocorona Observatory will study Earth’s exosphere, and SWFO-L1 will deliver real-time solar storm warnings. Together, they aim to improve space-weather science and safeguard technology on...
-
NASA’s PUNCH Mission Completes Final Orbit Manoeuvres, Opens Early Sun Data to the Public
NASA’s PUNCH mission has reached full operational status, enabling continuous monitoring of the Sun and solar wind from multiple vantage points around Earth. This collaborative effort complements other major solar missions and promises valuable insights into the Sun–Earth connection. Early public release of PUNCH’s science data marks an excit...
-
Hubble Delivers Best View Yet of Rare Interstellar Comet 3I/ATLAS Racing Through Solar System
Hubble has captured its sharpest image of 3I/ATLAS, a rare interstellar comet speeding through the solar system at 130,000 mph. The view reveals a dust-filled coma, a faint tail, and activity similar to native comets. Astronomers aim to study its composition before it vanishes forever, offering insight into objects formed around other stars.
-
Indian Scientists Unravel the Mystery Behind Rare Aurora Over Ladakh
A team of Indian astronomers has successfully explained the rare aurora seen over Ladakh, caused by intense solar activity and CME collisions. The event, captured in May 2024, was traced using global data and advanced solar models, offering new insights into space weather forecasting and solar storm impacts on Earth.
-
Uranus Found Emitting Internal Heat, Reviving Hopes for Flagship NASA Mission
Astronomers have discovered that Uranus emits 12% more heat than it receives from sunlight, contradicting past data from Voyager 2. The internal warmth likely comes from leftover energy in the planet’s core, offering clues to its tilt and interior structure. This unexpected heat has intensified calls for a flagship NASA mission to Uranus. Scienti...
-
Astronomers Discover 3I/ATLAS, Largest Interstellar Comet Yet Detected
Astronomers have discovered 3I/ATLAS, the third known interstellar comet to pass through our solar system. Detected by the ATLAS telescope in Chile, it’s racing inward at 150,000 mph and will swing closest to the Sun in October. Estimated to be 10–20 kilometers across, it is likely the largest interstellar object observed so far. Signs of comet...
-
Two Spacecraft Recreate Artificial Solar Eclipses to Observe the Sun’s Superhot Corona
Twin satellites in ESA’s Proba-3 mission have successfully recreated artificial solar eclipses from space to examine the sun’s million-degree corona. The breakthrough will allow continuous observations of the sun’s outer atmosphere, offering rare insights that natural eclipses on Earth can’t provide. The mission marks a major step in solar ...
-
'City-Killer' Asteroid May Hit Moon, Hurl Deadly Debris Toward Earth
Asteroid 2024 YR4 might collide with the Moon in 2031, with a 4.3% chance of impact, according to NASA's updated calculations.
-
Solar Storms Are Causing Elon Musk's Starlink Satellites To Fall From The Sky
The study revealed that geomagnetic storms caused by the Sun's eruptions increased atmospheric drag, causing satellites to re-enter faster than expected.
-
The Promise And Peril Of A Crewed Mars Mission
Mars mission would pursue scientific objectives like determining whether Mars ever hosted life and charting the evolution of its surface, as well as answering broader questions -- such as the history of the Sun through studying Martian soil.
