Elderly Man Pleads Guilty in Shooting of Black Teenager Ralph Yarl

NASA has reported that a 540-foot asteroid, designated 2014 TN17, is heading toward Earth at a speed of 77,282 km/h. This asteroid, which is roughly twice the size of the Taj Mahal, is classified as a potentially hazardous asteroid due to its size and proximity risk. Although its trajectory poses no current threat, continuous monitoring is warranted given the potential for gravitational disturbances to alter its path. The asteroid will make its closest approach on March 26, 2025, at 5:04 PM IST, coming within 5 million kilometers of Earth, more than 13 times the distance from the Earth to the Moon. According to NASA's Center for Near-Earth Object Studies, even a minor deviation in the asteroid's orbit could have catastrophic consequences, similar to the Tunguska event in 1908, when an explosion believed to be caused by an impacting object flattened about 80 million trees. Astronomers globally are closely monitoring Apollo group asteroids, including 2014 TN17, to ensure early detection and risk management.

Andrew Krapivin, an undergraduate at Rutgers University, has made a groundbreaking contribution to computer science by developing a new type of hash table that can locate data faster than previously believed, effectively discrediting a conjecture established 40 years ago. Alongside his collaborators, Martín Farach-Colton and William Kuszmaul, Krapivin's work was published in a January 2025 paper and challenges established theories surrounding the efficiency of hash tables, a widely utilized data structure. Historically, hash tables have facilitated efficient data storage and retrieval, with origins tracing back to the early 1950s. In a pivotal 1985 paper, renowned computer scientist Andrew Yao claimed that the worst-case query time for certain hash tables could never be better than linearly proportional to the table's fullness. Krapivin, unaware of this conjecture, instead devised a mechanism that reduces the search time dramatically, achieving a constant average time regardless of the hash table's fullness. Experts, including Alex Conway from Cornell Tech, have hailed the findings as significant, noting their potential to reshape understanding in this area of computer science.

In a significant development, U.S. President Donald Trump and Russian President Vladimir Putin engaged in a two-hour phone call, resulting in a temporary ceasefire regarding attacks on energy infrastructure in Ukraine. According to a statement from the Kremlin, the two leaders had a "detailed and frank exchange of views" and agreed to a halt in strikes for a period of 30 days. Putin, during the conversation, urged the cessation of forced mobilization and the rearmament of Ukrainian forces, emphasizing that these measures are critical for a sustainable peace process. This dialogue comes amid growing international concerns about the ongoing conflict and its broader implications. While both parties have expressed a commitment to de-escalation, experts remain cautious, noting the complex nature of negotiations in such a volatile situation. The ceasefire is seen as a positive step, but its long-term effectiveness remains to be evaluated. The agreement marks a notable milestone in U.S.-Russia relations, with both leaders acknowledging the necessity to stabilize the situation in Ukraine.