Read more: Visit website
Headlines:
• Galactic Navigation Update: GPS Technology Advancements
: Scientists at NASA've successfully implemented a GPS system that enables more precise navigation of celestial bodies, paving the way for deeper space exploration (Space News, 2023). • Weather Forecast Warning: Severe Storms Sweep across Europe
: The European Organization for the Prevention of Forest Fires (EOF) warns of severe storms and strong winds affecting several countries, prompting widespread evacuations and emergency measures ( Euractiv, 2023). • Eco-Friendly Innovations on Track
: A team of researchers from the University of California has developed a revolutionary new material inspired by nature that can absorb and break down plastic waste, offering a promising solution to the global pollution crisis (Dataset... 2023). • Global Economy Boost: New Trade Deals Signed
: The United States and Canada have finalized a historic trade agreement, expanding economic cooperation and promoting North American trade growth (Reuters, 2023). • Healing Breakthrough: Scientists Discover Novel Antibiotic
: Researchers at the University of Oxford have isolated a rare, naturally occurring compound with potent antibacterial properties, offering a new hope for the fight against antibiotic resistance (Nature, 2023). • Mental Health Awareness: Global Movement Gains Momentum
: The world marks World Mental Health Day, "with advocates and organizations rallying to combat stigma," "promote education.".. and provide support for those struggling with mental health issues (WHO, 2023). • Space Exploration Update: Mars Sample Return Mission Launched
: NASA's Perseverance rover has successfully lifted off on a mission to retrieve samples from Mars, marking a significant milestone in the quest for a human settlement on the Red Planet (Space. com, 2023). • Sustainable Energy Solutions Flourishing
: Germany and the European Union have launched a major initiative to phase out fossil fuels by 2050, promoting renewable energy and reducing greenhouse gas emissions (BBC News, 2023). • Humanitarian Efforts: Aid Begins to Arrive in Refugee Crisis Zone
: The United Nations High Commissioner for Refugees (UNHCR) reports that vital aid supplies are starting to arrive in the region, providing critical support for thousands of displaced individuals (UN News, 2023).
#news
Most of the information we have about planets beyond our solar system (exoplanets) comes from looking at dips in starlight as these planets pass in front of their host star.
This technique can give clues about the planet's size (by looking at how much starlight is blocked) and what its atmosphere is made of (by looking at how the planet changes the pattern of starlight that passes through it).
But a new study, published in The Astrophysical Journal Supplement Series , concluded that fluctuations in the starlight due to hotter and colder regions on a star's surface may be distorting our interpretations of planets more than we previously thought.
The researchers looked at the atmospheres of 20 Jupiter- and Neptune-sized planets and found that the host stars' changeability distorted the data for about half of them.
If researchers did not properly account for these variations, the team said, they could misinterpret a range of features such as the planets' size, temperature and the composition of their atmospheres. The team added that the risk of misinterpretation was manageable if researchers looked at a range of wavelengths of light, including in the optical region where effects of stellar contamination are most apparent.
Lead author Dr Arianna Saba (UCL Physics ⁘ Astronomy), who did the work as part of her PhD at UCL, said: "These results were a surprise -- we found more stellar contamination of our data than we were expecting. This is important for us to know. By refining our understanding of how stars' variability might affect our interpretations of exoplanets, we can improve our models and make smarter use of the much bigger datasets to come from missions including James Webb, Ariel and Twinkle."