Satellites
Mar 18
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Space.com // 2026-03-18
Astronauts Prep ISS for New Solar Array on First NASA Spacewalk in 10 Months
THE GIST: Astronauts completed a 7-hour spacewalk to prepare the ISS for a new iROSA solar array.
IMPACT:
The installation of new solar arrays is crucial for maintaining the ISS's power supply as the original arrays degrade. This upgrade supports expanded commercial activities and the transition to commercially operated space stations.
Optimistic
Bull
Case // Upside
The increased power from the iROSAs will enable more extensive research and commercial activities on the ISS. The technology's success on the ISS could also pave the way for its use in future deep-space missions.
Pessimistic
Bear
Case
// Risk
Delays in the iROSA installation could impact the ISS's power capabilities, potentially limiting research and commercial activities. The potential cancellation of the Gateway moon-orbiting space station raises concerns about the future applications of this technology.
ELI5
Explain
Like I'm 5
Imagine the ISS is like a house that needs more electricity. Astronauts went outside to set up a new solar panel so the house can have more power to do cool science experiments!
Satellites
Mar 18
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Universe Today // 2026-03-18
Exoplanet L 98-59 d: A 5-Billion-Year-Old Magma Ocean World
THE GIST: New research suggests exoplanet L 98-59 d is a new class of planet with a long-lasting magma ocean due to high sulphur content.
IMPACT:
The discovery of this new class of exoplanet challenges existing models of planetary formation and evolution. Understanding the role of sulphur in maintaining magma oceans could provide insights into planetary habitability.
Optimistic
Bull
Case // Upside
Further research on L 98-59 d could reveal new details about the conditions necessary for life to arise on other planets. This could refine the search for habitable exoplanets and increase the chances of finding extraterrestrial life.
Pessimistic
Bear
Case
// Risk
The extreme conditions on L 98-59 d, such as the presence of a magma ocean and a thick, sulphur-rich atmosphere, make it unlikely to be habitable. The planet's proximity to a red dwarf star also exposes it to high levels of radiation.
ELI5
Explain
Like I'm 5
Imagine a planet that's mostly melted rock inside, like a giant lava lamp, and it stays that way for billions of years because it has a special ingredient called sulphur!
Launch Vehicles
Mar 18
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Space.com // 2026-03-18
SpaceX Tests Next-Gen Starship V3 Booster Ahead of April Launch
THE GIST: SpaceX conducted a static fire test of its next-generation 'V3' Starship Super Heavy booster, marking a step towards its first flight in April.
IMPACT:
The V3 Starship represents a significant upgrade in payload capacity and is the first iteration designed for lunar and Martian missions. Successful testing and launch are crucial for SpaceX's ambitions in deep space exploration and multi-planetary logistics.
Optimistic
Bull
Case // Upside
The successful static fire, despite the early shutdown, validates the V3 design and paves the way for increased launch capacity. The activation of Pad 2 will double Starbase's launch capabilities, potentially accelerating the pace of Starship development and deployment.
Pessimistic
Bear
Case
// Risk
The early shutdown of the static fire due to a ground-side issue highlights potential challenges in the V3's development. The need to install 23 more Raptor engines on Booster 19 before a full-engine static fire introduces further risk and could delay the planned April launch.
ELI5
Explain
Like I'm 5
SpaceX made a new, bigger rocket called Starship V3! They tested its engines, but it stopped early. This new rocket can carry way more stuff to space, like building blocks for a Moon base!
Satellites
Mar 18
◆
Universe Today // 2026-03-18
NASA's SPARCS CubeSat Captures First Light Images
THE GIST: NASA's SPARCS CubeSat, launched in January 2026, has obtained its first light images, monitoring UV activity of low-mass stars.
IMPACT:
SPARCS will provide crucial data on the UV environment around low-mass stars, helping assess the habitability of orbiting exoplanets. Understanding stellar activity is vital for determining exoplanet atmospheric conditions.
Optimistic
Bull
Case // Upside
SPARCS's sensitive UV measurements could reveal new insights into exoplanet habitability. This could lead to the discovery of potentially habitable worlds orbiting common low-mass stars.
Pessimistic
Bear
Case
// Risk
The high UV radiation emitted by M-type stars could pose a challenge to exoplanet habitability. SPARCS may confirm that many planets orbiting these stars are uninhabitable.
ELI5
Explain
Like I'm 5
NASA sent a small telescope to space to look at stars and see if planets around them could have air we can breathe!
Launch Vehicles
Mar 18
◆
Ars Technica Space // 2026-03-18
TransAstra Plans Asteroid Capture Mission 'New Moon'
THE GIST: TransAstra is developing a mission to capture and relocate a small asteroid for in-space resource utilization.
IMPACT:
This mission could pave the way for in-space resource utilization, reducing the cost of space activities. Aggregating asteroids at a central facility could provide water and minerals for propellant and manufacturing.
Optimistic
Bull
Case // Upside
Successful demonstration of asteroid capture and relocation would validate ISRU technologies. This could lead to a sustainable space economy, reducing reliance on Earth-based resources and enabling deep-space exploration.
Pessimistic
Bear
Case
// Risk
The mission faces technical challenges in capturing and relocating an asteroid. Funding uncertainties and potential delays could impact the timeline and viability of the project.
ELI5
Explain
Like I'm 5
Imagine catching a space rock with a giant bag and bringing it closer to Earth so robots can use it to make fuel and other stuff we need in space!
Satellites
Mar 18
◆
Space.com // 2026-03-18
Chinese Astronaut Ties Record with Sixth Spacewalk
THE GIST: Zhang Lu completed his sixth spacewalk outside the Tiangong space station, tying a Chinese record.
IMPACT:
The spacewalk highlights China's continued progress in space station operations and maintenance. The installation of debris shielding is crucial for the long-term viability of Tiangong, which China aims to keep permanently occupied for at least a decade.
Optimistic
Bull
Case // Upside
China's commitment to its space program, demonstrated by frequent missions and spacewalks, suggests a strong potential for further advancements in space technology and international collaboration. The planned launches of Shenzhou 23 and 24 will ensure continuous operation and research on Tiangong.
Pessimistic
Bear
Case
// Risk
The incident involving the Shenzhou 20 spacecraft and suspected debris damage raises concerns about the vulnerability of spacecraft to space debris. Addressing this issue is critical for ensuring the safety of future missions and the longevity of space assets.
ELI5
Explain
Like I'm 5
Imagine building a house in space! Chinese astronauts went outside their space house, Tiangong, to add shields to protect it from space rocks. One astronaut, Zhang Lu, has now been outside the house six times, which is a lot!
Satellites
Mar 18
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NASA Breaking News // 2026-03-18
Landsat 8 Captures Mayon Volcano Eruption with Infrared Overlay
THE GIST: Landsat 8 captured a rare, clear image of Mayon volcano erupting in the Philippines on February 26, 2026, overlaid with infrared to highlight lava flow.
IMPACT:
Monitoring volcanic activity is crucial for understanding geological processes and predicting potential hazards. Satellite imagery combined with ground-based observations provides valuable data for assessing volcanic risk and informing mitigation strategies.
Optimistic
Bull
Case // Upside
Advanced imaging technologies like Landsat 8's OLI enable detailed monitoring of volcanic activity, improving our ability to forecast eruptions and protect vulnerable populations. Continued advancements in remote sensing will further enhance our understanding of Earth's dynamic processes.
Pessimistic
Bear
Case
// Risk
Volcanic eruptions pose significant risks to nearby communities and infrastructure, and the unpredictable nature of volcanic activity makes accurate forecasting challenging. Reliance on satellite data requires careful calibration and validation with ground-based measurements to ensure accuracy.
ELI5
Explain
Like I'm 5
Imagine a giant mountain that sometimes spits out hot lava! A special camera in space took a picture of it, and we can see the hot lava glowing even more clearly with special heat vision!
Defense & Policy
Mar 18
◆
NASA Breaking News // 2026-03-18
NASA Pathways Program: Veteran's Journey from Service to Space Systems
THE GIST: Corey Elmore, a Navy veteran, leverages his military experience as a NASA Pathways intern, applying AI and automation to enhance engineering workflows at Kennedy Space Center.
IMPACT:
The NASA Pathways program provides valuable opportunities for students and veterans to gain hands-on experience in the aerospace industry. By integrating diverse backgrounds and skillsets, NASA fosters innovation and strengthens its workforce.
Optimistic
Bull
Case // Upside
Elmore's work on AI and automation has the potential to significantly improve the efficiency and effectiveness of NASA's engineering processes. His experience highlights the valuable contributions that veterans can make to the space program.
Pessimistic
Bear
Case
// Risk
Integrating AI and automation into complex engineering workflows can be challenging, requiring careful validation and testing to ensure reliability. The success of the Pathways program depends on continued funding and support from NASA and its partners.
ELI5
Explain
Like I'm 5
Imagine a soldier who used to fix people now helps build rockets! He uses computers to make the job easier and faster, so we can explore space even more!
Satellites
Mar 18
◆
Space.com // 2026-03-18
Northern Lights Possible in 16 US States Due to CME Activity
THE GIST: Several coronal mass ejections (CMEs) are expected to cause moderate geomagnetic storms, potentially making the Northern Lights visible in 16 U.S. states.
IMPACT:
Increased CME activity can disrupt satellite communications and power grids, while also providing a rare opportunity for aurora viewing in lower latitudes. Understanding CME impacts is crucial for protecting space-based and terrestrial infrastructure.
Optimistic
Bull
Case // Upside
If the CME's magnetic field aligns favorably, a strong (G3) geomagnetic storm could develop, pushing the aurora even further south. This could lead to increased public interest in space weather and astronomy.
Pessimistic
Bear
Case
// Risk
The visibility of the aurora is highly dependent on the CME's magnetic orientation; a northward orientation could deflect energy and prevent the aurora from materializing. Unpredictable CME behavior can lead to inaccurate forecasts and disappointment for aurora chasers.
ELI5
Explain
Like I'm 5
Imagine the Sun burping! Sometimes those burps, called CMEs, hit Earth and make our magnetic field wiggle. This wiggle can make pretty lights, called auroras, visible in the sky, even in places where you don't usually see them.
Satellites
Mar 18
◆
Universe Today // 2026-03-18
Astronomers Seek Exotrojans in Extreme Pulsar Systems
THE GIST: Astronomers are searching for "exotrojans" – co-orbital objects – in pulsar binary systems, using novel detection techniques.
IMPACT:
Finding exotrojans would expand our understanding of planetary formation and orbital dynamics in extreme environments. It could also reveal new insights into the evolution of pulsar systems.
Optimistic
Bull
Case // Upside
The low mass of the companion star in black widow systems makes stable orbits for exotrojans more likely. The use of combined optical and radio data offers a promising new approach to detection.
Pessimistic
Bear
Case
// Risk
Directly observing exotrojans in these systems is extremely challenging due to the intense radiation and complex gravitational interactions. The search requires innovative detection techniques and careful analysis of data.
ELI5
Explain
Like I'm 5
Imagine two stars dancing around each other, and a tiny planet hiding in a special spot between them! Scientists are looking for these hidden planets, called exotrojans, near very strange stars called pulsars.
Satellites
Mar 18
◆
NASA Breaking News // 2026-03-18
Hubble Witnesses Comet K1 Breaking Apart Unexpectedly
THE GIST: NASA's Hubble Space Telescope unexpectedly observed comet C/2025 K1 (ATLAS) fragmenting into at least four pieces after its perihelion.
IMPACT:
Observing a comet breaking apart provides valuable insights into the composition and evolution of these primordial solar system objects. The event allows scientists to study the ancient, unprocessed material within the comet.
Optimistic
Bull
Case // Upside
The Hubble observations offer a unique opportunity to study the composition of a comet's interior and understand the processes that lead to fragmentation. This could improve our understanding of comet behavior and potential hazards.
Pessimistic
Bear
Case
// Risk
The unexpected nature of the observation highlights the difficulty in predicting comet behavior and the challenges of studying these objects. The delay between the breakup and observed outbursts remains a mystery.
ELI5
Explain
Like I'm 5
Imagine an ice cream ball in space breaking into smaller pieces! Hubble, a super-powerful telescope, saw a comet, which is like a dirty ice cream ball, crumble apart. This helps scientists learn what's inside comets.
Satellites
Mar 18
◆
ESA Science // 2026-03-18
Hubble Captures Unexpected Comet Fragmentation
THE GIST: Hubble unexpectedly observed Comet K1 fragmenting into at least four pieces after its closest approach to the Sun.
IMPACT:
Comet fragmentation provides insights into the composition and evolution of these primordial solar system bodies. Hubble's observation offers a rare glimpse into the internal structure of a comet.
Optimistic
Bull
Case // Upside
Studying the fragments could reveal pristine materials from the early solar system, enhancing our understanding of planetary formation. Further observations of cometary breakup events may refine models of cometary structure and behavior.
Pessimistic
Bear
Case
// Risk
Comet fragmentation is a complex process, and interpreting the data may be challenging. The limited observation window may restrict the scope of analysis and the conclusions that can be drawn.
ELI5
Explain
Like I'm 5
Imagine an icy snowball breaking into pieces after getting too close to a hot lamp – that's like what happened to a comet, and Hubble saw it!