Nasa’s Hubble Space Telescope has uncovered the hidden history of the Andromeda Galaxy, revealing its complex formation and evolution. By studying ancient stellar populations, Hubble provides critical insights into how this galaxy formed and how it has changed over billions of years. This research helps scientists piece together the broader story of galaxy development in the universe. A significant discovery Hubble made is the detection of stellar streams—faint, scattered trails of stars that reveal past galactic mergers. These streams are the remnants of smaller galaxies that collided with Andromeda billions of years ago. The presence of these streams offers clues about how Andromeda grew through these ancient cosmic interactions, reshaping its structure over time.

Marine biologists at UC Santa Cruz have discovered that northern elephant seals can serve as 'smart sensors' for monitoring fish populations in the ocean’s twilight zone. Seals' foraging behavior can provide critical data about fish availability in this deep, dimly lit area, helping address the growing demand for protein-rich foods.

Antidepressants, such as Prozac, are routinely used to treat mental health issues, but recent research reveals they may also protect against major infections and life-threatening sepsis. Scientists at the Salk Institute have now discovered how medications regulate the immune system and protect against infectious disease, providing insights that could lead to a new generation of life-saving treatments and improve global readiness for future pandemics.

Researchers at the University of Michigan, led by Enrico Rinaldi, have discovered through quantum computing that black holes might be storing information on their surfaces like holograms. This groundbreaking finding could reconcile general relativity with quantum mechanics and revolutionize our understanding of space and time, potentially unlocking more universal secrets.

Scientists discovered thousands of ice quakes beneath Greenland’s Ice Sheet, changing our understanding of ice movements and global climate. These quakes, revealed through advanced technology, provide new insights into ice stream behavior, crucial for predicting sea level rise due to global warming. This new knowledge updates previous assumptions, improving climate change models.

Adults with depression could develop chronic conditions like osteoarthritis and hypertension 30 per cent faster than those without, a study from the University of Edinburgh suggests. Following over 1.7 lakh people from the UK Biobank for seven years, the study highlights the need for treating both mental and physical health together to improve outcomes.

Jumping exercises may help prevent cartilage damage, aid bone strength in astronauts on long-duration space missions, a mice study suggests. Johns Hopkins research indicates that jump training enhances cartilage thickness and bone health in a microgravity environment. This exercise could be crucial to maintaining astronaut health on future Moon and Mars missions, highlighting the importance of movement in space.

NASA astronauts Sunita Williams and Barry Wilmore are undergoing an extended mission on the ISS due to spacecraft technical issues. Originally an eight-day mission, it has stretched to eight months, raising financial and physical concerns. NASA plans their return around March 12 via Crew-10 mission, addressing their significant readjustment challenges after prolonged microgravity exposure.

NASA and SpaceX are accelerating plans to return astronauts Sunita Williams and Butch Wilmore to Earth, targeting mid-March. Initially planned for late March or April, the return is being expedited through a capsule swap due to extended stays and previous mission delays. NASA and SpaceX are ensuring safety amidst operational challenges.

Elon Musk's 2016 prediction of humans setting foot on Mars by 2025 has resurfaced with his viral tweet featuring a futuristic 'Welcome to Mars' video. The video envisions an advanced Martian habitat but omits natural elements like greenery. Public reactions highlight design concerns and debates on the feasibility and ethics of prioritizing Mars colonization over Earthly issues.

Nasa announced that astronauts Butch Wilmore and Sunita Williams, stranded on the ISS, will return to Earth sooner than expected. SpaceX will adjust its schedule for a mid-March return. Originally set for June, technical issues delayed their return, extending their mission to over nine months. Nasa will use an older capsule for the crew launch on March 12.