Month: September 2025

Exploring the Cosmic Boundaries: Does an Edge Exist in Our Universe? The universe has long captivated human curiosity with its vastness and mystery. While our understanding is continually evolving, many questions still linger about the fundamental nature of the cosmos, particularly concerning its boundaries—or perceived edges—and what might lie beyond them. Understanding the Universe’s Scale […]

Reflecting on a Milestone: Transitioning from Harvard to a New Academic Journey As an astronomer, I recently experienced a significant professional milestone—my last day working at Harvard University. While I acknowledge that sharing such personal reflections on a public platform might raise some questions, I believe it’s important to celebrate these moments of transition that […]

Understanding the Apparent Size Difference: Why Does Earth Look Smaller When Viewed from the Moon? Many enthusiasts and curious minds have pondered the visual perspectives of our planetary neighbors. A common question arises when examining historical images taken from the Moon: Why does the Earth appear smaller when viewed from the lunar surface, especially in […]