This epiosode is broght to you by NordVPN...the official VPN service of SpaceTime. Get online security at a special SpaceTime price. Details at www.nordvpn.com/stuartgary
or use the code STUARTGARY at checkout.
In this episode of SpaceTime, we explore groundbreaking discoveries and significant events unfolding in our universe.
Galactic Collision Course: Two Massive Galaxy Clusters Set for Round Two
Astronomers have observed a rare cosmic event as two massive galaxy clusters, previously collided, are now on a trajectory for another encounter. Located 2.8 billion light-years away, the clusters—designated PSE2G 181.06.48.47—exhibit fascinating structures and shock fronts indicative of their impending collision. We delve into the implications of this rare event and what it reveals about the dynamics of galaxy clusters and dark matter.
NASA's Psyche Mission Switches to Backup Systems
NASA has been compelled to switch to a backup fuel system on its Psyche spacecraft after a drop in fuel pressure was detected in the main propulsion system. We discuss the technical challenges faced by the mission team, the significance of the asteroid Psyche, and what this means for the spacecraft's journey to explore this intriguing metallic asteroid, scheduled for arrival in 2029.
Discovery of a New Atomic Nucleus
For the first time in over three decades, scientists have measured the heaviest nucleus decaying through proton emission. This discovery, involving the lightest known isotope of astatine-188, sheds light on the rare form of radioactive decay and the intricate properties of exotic nuclei. We explore the experimental techniques used and the theoretical implications of this groundbreaking finding.
www.spacetimewithstuartgary.com
✍️ Episode References
Astrophysical Journal
https://iopscience.iop.org/journal/0004-637X
NASA Psyche Mission
https://www.nasa.gov/psyche
Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.
00:00 This is Space Time Series 28, Episode 71 for broadcast on 13 June 2025
01:00 Galactic collision course: Two massive galaxy clusters set for round two
12:15 NASA's Psyche mission switches to backup systems
22:30 Discovery of a new atomic nucleus
30:00 Science report: Unprecedented ocean warming in the South Pacific
Popular Podcasts
Bookmarked by Reese's Book Club
Welcome to Bookmarked by Reese’s Book Club — the podcast where great stories, bold women, and irresistible conversations collide! Hosted by award-winning journalist Danielle Robay, each week new episodes balance thoughtful literary insight with the fervor of buzzy book trends, pop culture and more. Bookmarked brings together celebrities, tastemakers, influencers and authors from Reese's Book Club and beyond to share stories that transcend the page. Pull up a chair. You’re not just listening — you’re part of the conversation.
On Purpose with Jay Shetty
I’m Jay Shetty host of On Purpose the worlds #1 Mental Health podcast and I’m so grateful you found us. I started this podcast 5 years ago to invite you into conversations and workshops that are designed to help make you happier, healthier and more healed. I believe that when you (yes you) feel seen, heard and understood you’re able to deal with relationship struggles, work challenges and life’s ups and downs with more ease and grace. I interview experts, celebrities, thought leaders and athletes so that we can grow our mindset, build better habits and uncover a side of them we’ve never seen before. New episodes every Monday and Friday. Your support means the world to me and I don’t take it for granted — click the follow button and leave a review to help us spread the love with On Purpose. I can’t wait for you to listen to your first or 500th episode!
Dateline NBC
Current and classic episodes, featuring compelling true-crime mysteries, powerful documentaries and in-depth investigations. Follow now to get the latest episodes of Dateline NBC completely free, or subscribe to Dateline Premium for ad-free listening and exclusive bonus content: DatelinePremium.com