Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Impact: Problem Solving01:26

Impact: Problem Solving

249
In an experiment conducted during a Mars mission, a rover propels a projectile with an initial velocity, and the projectile rebounds after colliding with the Martian surface. To ascertain the maximum height attained by the projectile after this collision, the known restitution coefficient and acceleration due to gravity are employed.
By designating the launch point as the origin and utilizing kinematic equations, the vertical component of the projectile's velocity at the point of impact is...
249
Cell Motility through Blebbing01:16

Cell Motility through Blebbing

2.0K
Blebs are a type of membrane protrusion formed by the internal hydrostatic pressure of the cytoplasm. Blebs are observed in several cell types, including fibroblasts, immune cells, and single-celled organisms like the amoeba. The primary function of blebs is cell locomotion and apoptosis, but they are also found during necrosis and cell division. The life cycle of a bleb comprises an initiation phase followed by the expansion and retraction phases.
Blebbing Through the Matrix
In multicellular...
2.0K
Precipitate Formation and Particle Size Control01:16

Precipitate Formation and Particle Size Control

860
In precipitation gravimetry, the precipitating agent should react specifically or selectively with the analyte. While a specific reagent reacts with the analyte alone, a selective reagent can react with a limited number of chemical species.
The obtained precipitate should be either a pure substance of known composition or easily converted to one by a simple process, such as ignition or drying. In addition, the precipitate should be insoluble and easily filterable. In general, filterability...
860
ortho–para-Directing Deactivators: Halogens01:24

ortho–para-Directing Deactivators: Halogens

5.7K
Halogens are ortho–para directors. They are more electronegative than carbon. Therefore, as ring substituents, they can withdraw electrons through the inductive effect and deactivate the aromatic ring towards electrophilic substitution. Halogens also have an electron-donating resonance effect on the ring, which influences the orientation of the incoming electrophile. If an electrophile attacks at the ortho or the para position, the halogen donates electrons and stabilizes the intermediate...
5.7K
Rocket Propulsion In Empty Space - II01:12

Rocket Propulsion In Empty Space - II

3.0K
The motion of a rocket is governed by the conservation of momentum principle. A rocket's momentum changes by the same amount (with the opposite sign) as the ejected gases. As time goes by, the rocket's mass (which includes the mass of the remaining fuel) continuously decreases, and its velocity increases. Therefore, the principle of conservation of momentum is used to explain the dynamics of a rocket's motion. The ideal rocket equation gives the change in velocity that a rocket...
3.0K
Cancer Cell Migration through Invadopodia01:35

Cancer Cell Migration through Invadopodia

2.4K
Invadosome is a broad category of cell surface structures with proteolytic activity that  degrades the extracellular matrix (ECM). Invadosomes are present in normal cell types, including macrophages, endothelial cells, and neurons, as well as tumor cells. Although the macrophage podosomes and tumor cell invadopodia are classified as invadosomes, they have different structures, molecular pathways, and functions. Podosomes are short structures that last for a few minutes. However,...
2.4K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A label-free nanoplasmonic biosensor for intraoperative discrimination of tumor margins in brain metastases surgery.

Journal of neuro-oncology·2026
Same author

Breastfeeding shapes a unique tumor-immune landscape in pregnancy-associated breast cancer from GEICAM-EMBARCAM study.

Breast cancer research : BCR·2026
Same author

Performance of the Techcyte AI-based image analysis system for coproparasitological diagnosis in clinical stool specimens: a retrospective evaluation study.

Journal of clinical microbiology·2026
Same author

Isotopic evidence for a cold and distant origin of 3I/ATLAS.

Nature·2026
Same author

The Lucy flyby of (52246) Donaldjohanson: A bilobed asteroid with tumbling rotation.

Science (New York, N.Y.)·2026
Same author

Longitudinal cognitive assessment using the Cumulus NeuLogiq platform in amyotrophic lateral sclerosis and frontotemporal dementia.

Scientific reports·2026
Same journal

Family of magnetic field-boosted superconductors in rhombohedral graphene.

Nature·2026
Same journal

What's the human cost of US research turmoil? A new film finds out.

Nature·2026
Same journal

Daily briefing: Ovaries start a second job after menopause.

Nature·2026
Same journal

Audio long read: Is the peptide craze backed by science? The promise behind the hype.

Nature·2026
Same journal

Scientists fight back against far-right plans to restrict academic freedom in Germany.

Nature·2026
Same journal

How AI can crack open the 'hidden curriculum' for neurodivergent students.

Nature·2026
See all related articles

Related Experiment Video

Updated: Aug 8, 2025

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas
07:54

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Published on: April 3, 2018

8.3K

Ejecta from the DART-produced active asteroid Dimorphos.

Jian-Yang Li1, Masatoshi Hirabayashi2, Tony L Farnham3

  • 1Planetary Science Institute, Tucson, AZ, USA. jyli@psi.edu.

Nature
|March 1, 2023
PubMed
Summary
This summary is machine-generated.

The Double Asteroid Redirection Test (DART) mission observed asteroid ejecta evolution. This study reveals how impact debris disperses into a tail, offering insights into active asteroid formation.

More Related Videos

Scattering And Absorption of Light in Planetary Regoliths
11:34

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

10.4K
Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System
09:44

Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System

Published on: June 5, 2014

12.9K

Related Experiment Videos

Last Updated: Aug 8, 2025

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas
07:54

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Published on: April 3, 2018

8.3K
Scattering And Absorption of Light in Planetary Regoliths
11:34

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

10.4K
Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System
09:44

Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System

Published on: June 5, 2014

12.9K

Area of Science:

  • Planetary Science
  • Astrophysics
  • Space Mission Science

Background:

  • Active asteroids are thought to form from impacts, but the ejecta evolution into a tail has not been directly observed.
  • The NASA Double Asteroid Redirection Test (DART) mission provided a unique opportunity to study impact ejecta under controlled conditions.

Purpose of the Study:

  • To observe and analyze the evolution of ejecta from the DART mission impact on Dimorphos.
  • To understand the mechanisms driving the formation of asteroid tails from impact debris.

Main Methods:

  • Utilized the Hubble Space Telescope to observe DART impact ejecta from 15 minutes to 18.5 days post-impact.
  • Analyzed ejecta behavior at a spatial resolution of approximately 2.1 km per pixel.

Main Results:

  • Observed complex ejecta evolution, initially influenced by the Didymos binary system's gravity and later by solar radiation pressure.
  • Identified that low-speed ejecta formed a sustained tail consistent with those seen on impact-generated active asteroids.
  • The DART experiment provided direct observational data on impact ejecta dynamics.

Conclusions:

  • The DART impact ejecta's evolution provides a model for understanding asteroid disruption events.
  • This study offers a framework for interpreting the formation of active asteroids resulting from natural impacts.